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Merge from trunk (now lexical_cast has optimized conversions to and from array<>, fixes #7065)

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[SVN r79364]
This commit is contained in:
Antony Polukhin
2012-07-08 18:06:32 +00:00
parent 79d6468aeb
commit 675d0bb451
9 changed files with 1670 additions and 917 deletions
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920
doc/lexical_cast.qbk
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@@ -70,6 +70,15 @@ The following example uses numeric data in a string expression:
log_message("Error " + boost::lexical_cast<std::string>(yoko) + ": " + strerror(yoko));
}
``
Following example converts some number and puts it to file:
``
int i;
FILE* file;
...
typedef boost::array<char, 50> buf_t; // You can use std::array if your compiler supports it
buf_t buffer = boost::lexical_cast<buf_t>(i); // No dynamic memory allocation
puts(buffer.begin(), file);
``
[endsect]
[section Synopsis]
@@ -103,6 +112,7 @@ The character type of the underlying stream is assumed to be `char` unless eithe
* Arrays of characters: `wchar_t *`, `char16_t *`, `char32_t *`, `const wchar_t *`, `const char16_t *`, `const char32_t *`
* Strings: `std::basic_string`, `boost::containers::basic_string`
* `boost::iterator_range<WideCharPtr>`, where `WideCharPtr` is a pointer to wide-character or pointer to const wide-character
* `boost::array<CharT, N>` and `std::array<CharT, N>`, `boost::array<const CharT, N>` and `std::array<const CharT, N>`
[important Many compilers and runtime libraries fail to make conversions using new Unicode characters. Make shure that the following code compiles and outputs nonzero values, before using new types:
``
@@ -239,12 +249,20 @@ limitation of compiler options that you use.
, `"-inf"` (case insensitive) strings to get NaN and Inf values. `boost::lexical_cast<string>` outputs `"-nan"`, `"nan"`,
`"inf"`, `"-inf"` strings, when has NaN or Inf input values.
[pre
]
* [*Question:] What is the fastest way to convert a non zero terminated string or a substring using `boost::lexical_cast`?
* [*Answer:] Use `boost::iterator_range` for conversion. For example, if you whant to convert to `int` two characters from a string `str`, you shall write `lexacal_cast<int>(make_iterator_range(str.c_str(), str.c_str() + 2));`.
[endsect]
[section Changes]
* [*boost 1.51.0 :]
* Better performance, less memory usage for `boost::array<character_type, N>` and `std::array<character_type, N>` conversions.
* [*boost 1.50.0 :]
* `boost::bad_lexical_cast` exception is now globaly visible and can be catched even if code is compiled with -fvisibility=hidden.
@@ -335,417 +353,507 @@ Do not use this results to compare compilers, because tests were taken on differ
[/ BEGIN of section, generated by performance measuring program ]
[section Clang version 2.9 (tags/RELEASE_29/final)]
[table:id Performance Table ( Clang version 2.9 (tags/RELEASE_29/final))
[section Clang version 3.0 (tags/RELEASE_30/final)]
[table:id Performance Table ( Clang version 3.0 (tags/RELEASE_30/final))
[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
[[ string->char ][ !!! *<1* !!! ][ 319 ][ 17 ][ 16 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 192 ][ 16 ][ 9 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 142 ][ 9 ][ 9 ]]
[[ string->int ][ !!! *7* !!! ][ 109 ][ 21 ][ 16 ]]
[[ string->short ][ !!! *6* !!! ][ 113 ][ 21 ][ 15 ]]
[[ string->long int ][ !!! *7* !!! ][ 110 ][ 22 ][ 15 ]]
[[ string->long long ][ !!! *7* !!! ][ 112 ][ 23 ][ 17 ]]
[[ string->unsigned int ][ !!! *6* !!! ][ 107 ][ 19 ][ 14 ]]
[[ string->unsigned short ][ !!! *6* !!! ][ 106 ][ 18 ][ 16 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 108 ][ 20 ][ 15 ]]
[[ string->unsigned long long ][ !!! *7* !!! ][ 109 ][ 22 ][ 15 ]]
[[ string->float ][ !!! *14* !!! ][ 204 ][ 81 ][ 43 ]]
[[ string->double ][ !!! *24* !!! ][ 244 ][ 74 ][ 45 ]]
[[ string->long double ][ 121 ][ 170 ][ 62 ][ !!! *38* !!! ]]
[[ string->string ][ !!! *1* !!! ][ 124 ][ 25 ][ --- ]]
[[ string->container::string ][ !!! *3* !!! ][ 121 ][ 28 ][ --- ]]
[[ string->char ][ 6 ][ 115 ][ 26 ][ !!! *6* !!! ]]
[[ string->signed char ][ !!! *6* !!! ][ 115 ][ 23 ][ 21 ]]
[[ string->unsigned char ][ !!! *6* !!! ][ 113 ][ 25 ][ 22 ]]
[[ int->string ][ !!! *12* !!! ][ 128 ][ 29 ][ 19 ]]
[[ short->string ][ !!! *12* !!! ][ 128 ][ 29 ][ 21 ]]
[[ long int->string ][ !!! *12* !!! ][ 132 ][ 29 ][ 21 ]]
[[ long long->string ][ !!! *12* !!! ][ 127 ][ 29 ][ 22 ]]
[[ unsigned int->string ][ !!! *12* !!! ][ 137 ][ 33 ][ 19 ]]
[[ unsigned short->string ][ !!! *12* !!! ][ 137 ][ 31 ][ 20 ]]
[[ unsigned long int->string ][ !!! *12* !!! ][ 136 ][ 30 ][ 21 ]]
[[ unsigned long long->string ][ !!! *12* !!! ][ 128 ][ 27 ][ 23 ]]
[[ float->string ][ 51 ][ 187 ][ 82 ][ !!! *44* !!! ]]
[[ double->string ][ 56 ][ 190 ][ 83 ][ !!! *42* !!! ]]
[[ long double->string ][ 69 ][ 208 ][ 90 ][ !!! *54* !!! ]]
[[ char*->char ][ !!! *<1* !!! ][ 138 ][ 18 ][ 8 ]]
[[ char*->signed char ][ !!! *8* !!! ][ 126 ][ 10 ][ 9 ]]
[[ char*->unsigned char ][ !!! *<1* !!! ][ 98 ][ 9 ][ 9 ]]
[[ char*->int ][ !!! *8* !!! ][ 113 ][ 22 ][ 15 ]]
[[ char*->short ][ !!! *7* !!! ][ 113 ][ 22 ][ 17 ]]
[[ char*->long int ][ !!! *8* !!! ][ 111 ][ 23 ][ 15 ]]
[[ char*->long long ][ !!! *9* !!! ][ 112 ][ 24 ][ 18 ]]
[[ char*->unsigned int ][ !!! *8* !!! ][ 113 ][ 20 ][ 15 ]]
[[ char*->unsigned short ][ !!! *8* !!! ][ 113 ][ 20 ][ 15 ]]
[[ char*->unsigned long int ][ !!! *8* !!! ][ 112 ][ 21 ][ 16 ]]
[[ char*->unsigned long long ][ !!! *9* !!! ][ 110 ][ 23 ][ 14 ]]
[[ char*->float ][ !!! *14* !!! ][ 149 ][ 54 ][ 32 ]]
[[ char*->double ][ !!! *15* !!! ][ 166 ][ 59 ][ 33 ]]
[[ char*->long double ][ 122 ][ 171 ][ 63 ][ !!! *38* !!! ]]
[[ char*->string ][ !!! *7* !!! ][ 126 ][ 26 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 124 ][ 27 ][ --- ]]
[[ unsigned char*->char ][ !!! *<1* !!! ][ 99 ][ 10 ][ 8 ]]
[[ unsigned char*->signed char ][ !!! *<1* !!! ][ 102 ][ 10 ][ 9 ]]
[[ unsigned char*->unsigned char ][ !!! *<1* !!! ][ 98 ][ 10 ][ 9 ]]
[[ unsigned char*->int ][ !!! *7* !!! ][ 115 ][ 24 ][ 15 ]]
[[ unsigned char*->short ][ !!! *7* !!! ][ 115 ][ 25 ][ 17 ]]
[[ unsigned char*->long int ][ !!! *8* !!! ][ 115 ][ 22 ][ 16 ]]
[[ unsigned char*->long long ][ !!! *8* !!! ][ 116 ][ 23 ][ 16 ]]
[[ unsigned char*->unsigned int ][ !!! *8* !!! ][ 113 ][ 20 ][ 14 ]]
[[ unsigned char*->unsigned short ][ !!! *7* !!! ][ 114 ][ 21 ][ 15 ]]
[[ unsigned char*->unsigned long int ][ !!! *8* !!! ][ 114 ][ 21 ][ 14 ]]
[[ unsigned char*->unsigned long long ][ !!! *9* !!! ][ 112 ][ 23 ][ 16 ]]
[[ unsigned char*->float ][ !!! *14* !!! ][ 149 ][ 52 ][ 32 ]]
[[ unsigned char*->double ][ !!! *15* !!! ][ 165 ][ 59 ][ 33 ]]
[[ unsigned char*->long double ][ 122 ][ 172 ][ 63 ][ !!! *37* !!! ]]
[[ unsigned char*->string ][ !!! *8* !!! ][ 125 ][ 26 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *4* !!! ][ 119 ][ 26 ][ --- ]]
[[ signed char*->char ][ !!! *<1* !!! ][ 98 ][ 10 ][ 8 ]]
[[ signed char*->signed char ][ !!! *<1* !!! ][ 95 ][ 10 ][ 9 ]]
[[ signed char*->unsigned char ][ !!! *<1* !!! ][ 98 ][ 9 ][ 9 ]]
[[ signed char*->int ][ !!! *8* !!! ][ 111 ][ 21 ][ 15 ]]
[[ signed char*->short ][ !!! *7* !!! ][ 114 ][ 22 ][ 16 ]]
[[ signed char*->long int ][ !!! *8* !!! ][ 113 ][ 22 ][ 17 ]]
[[ signed char*->long long ][ !!! *8* !!! ][ 116 ][ 24 ][ 17 ]]
[[ signed char*->unsigned int ][ !!! *8* !!! ][ 109 ][ 20 ][ 15 ]]
[[ signed char*->unsigned short ][ !!! *8* !!! ][ 111 ][ 20 ][ 14 ]]
[[ signed char*->unsigned long int ][ !!! *8* !!! ][ 109 ][ 22 ][ 15 ]]
[[ signed char*->unsigned long long ][ !!! *8* !!! ][ 111 ][ 23 ][ 15 ]]
[[ signed char*->float ][ !!! *14* !!! ][ 150 ][ 53 ][ 32 ]]
[[ signed char*->double ][ !!! *15* !!! ][ 168 ][ 59 ][ 30 ]]
[[ signed char*->long double ][ 123 ][ 174 ][ 62 ][ !!! *37* !!! ]]
[[ string->char ][ !!! *<1* !!! ][ 169 ][ 9 ][ 10 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 108 ][ 8 ][ 10 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 103 ][ 9 ][ 10 ]]
[[ string->int ][ !!! *6* !!! ][ 117 ][ 24 ][ 24 ]]
[[ string->short ][ !!! *7* !!! ][ 115 ][ 20 ][ 24 ]]
[[ string->long int ][ !!! *7* !!! ][ 115 ][ 19 ][ 22 ]]
[[ string->long long ][ !!! *8* !!! ][ 116 ][ 21 ][ 23 ]]
[[ string->unsigned int ][ !!! *6* !!! ][ 121 ][ 18 ][ 23 ]]
[[ string->unsigned short ][ !!! *6* !!! ][ 116 ][ 19 ][ 22 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 117 ][ 23 ][ 21 ]]
[[ string->unsigned long long ][ !!! *8* !!! ][ 118 ][ 19 ][ 34 ]]
[[ string->float ][ !!! *13* !!! ][ 201 ][ 55 ][ 41 ]]
[[ string->double ][ !!! *14* !!! ][ 151 ][ 54 ][ 41 ]]
[[ string->long double ][ 195 ][ 231 ][ 67 ][ !!! *42* !!! ]]
[[ string->array<char, 50> ][ !!! *<1* !!! ][ 121 ][ 18 ][ 12 ]]
[[ string->string ][ !!! *1* !!! ][ 124 ][ 27 ][ --- ]]
[[ string->container::string ][ !!! *3* !!! ][ 114 ][ 25 ][ --- ]]
[[ string->char ][ 7 ][ 111 ][ 25 ][ !!! *7* !!! ]]
[[ string->signed char ][ !!! *6* !!! ][ 112 ][ 30 ][ 26 ]]
[[ string->unsigned char ][ !!! *6* !!! ][ 113 ][ 25 ][ 24 ]]
[[ int->string ][ !!! *12* !!! ][ 126 ][ 36 ][ 21 ]]
[[ short->string ][ !!! *11* !!! ][ 135 ][ 30 ][ 21 ]]
[[ long int->string ][ !!! *11* !!! ][ 128 ][ 28 ][ 21 ]]
[[ long long->string ][ !!! *12* !!! ][ 126 ][ 32 ][ 24 ]]
[[ unsigned int->string ][ !!! *11* !!! ][ 131 ][ 36 ][ 22 ]]
[[ unsigned short->string ][ !!! *11* !!! ][ 130 ][ 28 ][ 22 ]]
[[ unsigned long int->string ][ !!! *11* !!! ][ 130 ][ 36 ][ 22 ]]
[[ unsigned long long->string ][ !!! *11* !!! ][ 127 ][ 43 ][ 25 ]]
[[ float->string ][ 53 ][ 190 ][ 83 ][ !!! *41* !!! ]]
[[ double->string ][ 59 ][ 197 ][ 82 ][ !!! *44* !!! ]]
[[ long double->string ][ 118 ][ 229 ][ 101 ][ !!! *44* !!! ]]
[[ char*->char ][ !!! *1* !!! ][ 105 ][ 9 ][ 9 ]]
[[ char*->signed char ][ !!! *1* !!! ][ 107 ][ 10 ][ 10 ]]
[[ char*->unsigned char ][ !!! *1* !!! ][ 106 ][ 9 ][ 11 ]]
[[ char*->int ][ !!! *7* !!! ][ 149 ][ 25 ][ 24 ]]
[[ char*->short ][ !!! *7* !!! ][ 118 ][ 20 ][ 22 ]]
[[ char*->long int ][ !!! *9* !!! ][ 117 ][ 20 ][ 28 ]]
[[ char*->long long ][ !!! *9* !!! ][ 128 ][ 23 ][ 29 ]]
[[ char*->unsigned int ][ !!! *7* !!! ][ 120 ][ 19 ][ 23 ]]
[[ char*->unsigned short ][ !!! *7* !!! ][ 125 ][ 20 ][ 22 ]]
[[ char*->unsigned long int ][ !!! *8* !!! ][ 125 ][ 21 ][ 24 ]]
[[ char*->unsigned long long ][ !!! *8* !!! ][ 130 ][ 19 ][ 22 ]]
[[ char*->float ][ !!! *14* !!! ][ 162 ][ 56 ][ 41 ]]
[[ char*->double ][ !!! *16* !!! ][ 151 ][ 54 ][ 39 ]]
[[ char*->long double ][ 111 ][ 176 ][ 58 ][ !!! *42* !!! ]]
[[ char*->array<char, 50> ][ !!! *1* !!! ][ 116 ][ 20 ][ 17 ]]
[[ char*->string ][ !!! *8* !!! ][ 125 ][ 27 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 115 ][ 26 ][ --- ]]
[[ unsigned char*->char ][ !!! *1* !!! ][ 101 ][ 9 ][ 9 ]]
[[ unsigned char*->signed char ][ !!! *1* !!! ][ 104 ][ 9 ][ 11 ]]
[[ unsigned char*->unsigned char ][ !!! *1* !!! ][ 103 ][ 9 ][ 13 ]]
[[ unsigned char*->int ][ !!! *8* !!! ][ 116 ][ 20 ][ 24 ]]
[[ unsigned char*->short ][ !!! *7* !!! ][ 121 ][ 20 ][ 26 ]]
[[ unsigned char*->long int ][ !!! *8* !!! ][ 118 ][ 20 ][ 22 ]]
[[ unsigned char*->long long ][ !!! *8* !!! ][ 122 ][ 20 ][ 23 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 119 ][ 22 ][ 23 ]]
[[ unsigned char*->unsigned short ][ !!! *7* !!! ][ 122 ][ 20 ][ 22 ]]
[[ unsigned char*->unsigned long int ][ !!! *8* !!! ][ 125 ][ 21 ][ 22 ]]
[[ unsigned char*->unsigned long long ][ !!! *8* !!! ][ 122 ][ 19 ][ 25 ]]
[[ unsigned char*->float ][ !!! *14* !!! ][ 162 ][ 62 ][ 37 ]]
[[ unsigned char*->double ][ !!! *15* !!! ][ 151 ][ 58 ][ 39 ]]
[[ unsigned char*->long double ][ 116 ][ 156 ][ 58 ][ !!! *42* !!! ]]
[[ unsigned char*->array<char, 50> ][ !!! *1* !!! ][ 122 ][ 19 ][ 15 ]]
[[ unsigned char*->string ][ !!! *8* !!! ][ 124 ][ 27 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *4* !!! ][ 119 ][ 25 ][ --- ]]
[[ signed char*->char ][ !!! *1* !!! ][ 107 ][ 9 ][ 9 ]]
[[ signed char*->signed char ][ !!! *1* !!! ][ 108 ][ 10 ][ 11 ]]
[[ signed char*->unsigned char ][ !!! *1* !!! ][ 106 ][ 9 ][ 11 ]]
[[ signed char*->int ][ !!! *7* !!! ][ 122 ][ 21 ][ 22 ]]
[[ signed char*->short ][ !!! *7* !!! ][ 126 ][ 20 ][ 22 ]]
[[ signed char*->long int ][ !!! *8* !!! ][ 119 ][ 20 ][ 23 ]]
[[ signed char*->long long ][ !!! *8* !!! ][ 119 ][ 21 ][ 26 ]]
[[ signed char*->unsigned int ][ !!! *6* !!! ][ 124 ][ 18 ][ 22 ]]
[[ signed char*->unsigned short ][ !!! *7* !!! ][ 124 ][ 21 ][ 23 ]]
[[ signed char*->unsigned long int ][ !!! *8* !!! ][ 121 ][ 24 ][ 23 ]]
[[ signed char*->unsigned long long ][ !!! *8* !!! ][ 122 ][ 20 ][ 22 ]]
[[ signed char*->float ][ !!! *14* !!! ][ 167 ][ 56 ][ 37 ]]
[[ signed char*->double ][ !!! *14* !!! ][ 162 ][ 53 ][ 40 ]]
[[ signed char*->long double ][ 110 ][ 152 ][ 56 ][ !!! *42* !!! ]]
[[ signed char*->array<char, 50> ][ !!! *1* !!! ][ 117 ][ 19 ][ 12 ]]
[[ signed char*->string ][ !!! *8* !!! ][ 132 ][ 27 ][ --- ]]
[[ signed char*->container::string ][ !!! *4* !!! ][ 116 ][ 26 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 112 ][ 14 ][ 9 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 107 ][ 13 ][ 10 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 145 ][ 15 ][ 10 ]]
[[ iterator_range<char*>->int ][ !!! *6* !!! ][ 119 ][ 22 ][ 23 ]]
[[ iterator_range<char*>->short ][ !!! *6* !!! ][ 115 ][ 22 ][ 23 ]]
[[ iterator_range<char*>->long int ][ !!! *7* !!! ][ 115 ][ 25 ][ 22 ]]
[[ iterator_range<char*>->long long ][ !!! *7* !!! ][ 117 ][ 21 ][ 23 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 118 ][ 22 ][ 22 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *6* !!! ][ 117 ][ 24 ][ 22 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *7* !!! ][ 124 ][ 25 ][ 22 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *7* !!! ][ 119 ][ 22 ][ 22 ]]
[[ iterator_range<char*>->float ][ !!! *13* !!! ][ 159 ][ 42 ][ 41 ]]
[[ iterator_range<char*>->double ][ !!! *14* !!! ][ 152 ][ 40 ][ 40 ]]
[[ iterator_range<char*>->long double ][ 113 ][ 155 ][ 58 ][ !!! *54* !!! ]]
[[ iterator_range<char*>->array<char, 50> ][ !!! *<1* !!! ][ 127 ][ 23 ][ 13 ]]
[[ iterator_range<char*>->string ][ !!! *7* !!! ][ 132 ][ 30 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *3* !!! ][ 122 ][ 24 ][ --- ]]
[[ array<char, 50>->char ][ !!! *<1* !!! ][ 110 ][ 9 ][ 10 ]]
[[ array<char, 50>->signed char ][ !!! *<1* !!! ][ 119 ][ 9 ][ 13 ]]
[[ array<char, 50>->unsigned char ][ !!! *<1* !!! ][ 106 ][ 13 ][ 11 ]]
[[ array<char, 50>->int ][ !!! *6* !!! ][ 131 ][ 21 ][ 22 ]]
[[ array<char, 50>->short ][ !!! *7* !!! ][ 119 ][ 22 ][ 28 ]]
[[ array<char, 50>->long int ][ !!! *8* !!! ][ 133 ][ 21 ][ 26 ]]
[[ array<char, 50>->long long ][ !!! *8* !!! ][ 115 ][ 22 ][ 23 ]]
[[ array<char, 50>->unsigned int ][ !!! *6* !!! ][ 118 ][ 18 ][ 22 ]]
[[ array<char, 50>->unsigned short ][ !!! *7* !!! ][ 119 ][ 19 ][ 22 ]]
[[ array<char, 50>->unsigned long int ][ !!! *7* !!! ][ 118 ][ 23 ][ 21 ]]
[[ array<char, 50>->unsigned long long ][ !!! *7* !!! ][ 117 ][ 20 ][ 22 ]]
[[ array<char, 50>->float ][ !!! *15* !!! ][ 156 ][ 53 ][ 36 ]]
[[ array<char, 50>->double ][ !!! *15* !!! ][ 148 ][ 55 ][ 39 ]]
[[ array<char, 50>->long double ][ 110 ][ 150 ][ 56 ][ !!! *41* !!! ]]
[[ array<char, 50>->array<char, 50> ][ !!! *<1* !!! ][ 117 ][ 19 ][ 12 ]]
[[ array<char, 50>->string ][ !!! *7* !!! ][ 124 ][ 26 ][ --- ]]
[[ array<char, 50>->container::string ][ !!! *4* !!! ][ 115 ][ 26 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 117 ][ 24 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 245 ][ 125 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 100 ][ 9 ][ --- ]]
]
[endsect]
[section GNU C++ version 4.6.3]
[table:id Performance Table ( GNU C++ version 4.6.3)
[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
[[ string->char ][ !!! *<1* !!! ][ 142 ][ 10 ][ 18 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 111 ][ 8 ][ 10 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 101 ][ 8 ][ 10 ]]
[[ string->int ][ !!! *7* !!! ][ 110 ][ 20 ][ 24 ]]
[[ string->short ][ !!! *6* !!! ][ 109 ][ 20 ][ 25 ]]
[[ string->long int ][ !!! *7* !!! ][ 113 ][ 19 ][ 24 ]]
[[ string->long long ][ !!! *7* !!! ][ 116 ][ 24 ][ 23 ]]
[[ string->unsigned int ][ !!! *6* !!! ][ 110 ][ 19 ][ 23 ]]
[[ string->unsigned short ][ !!! *5* !!! ][ 116 ][ 18 ][ 23 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 111 ][ 22 ][ 23 ]]
[[ string->unsigned long long ][ !!! *7* !!! ][ 108 ][ 20 ][ 22 ]]
[[ string->float ][ !!! *11* !!! ][ 161 ][ 54 ][ 38 ]]
[[ string->double ][ !!! *11* !!! ][ 146 ][ 56 ][ 41 ]]
[[ string->long double ][ 113 ][ 151 ][ 59 ][ !!! *43* !!! ]]
[[ string->array<char, 50> ][ !!! *<1* !!! ][ 107 ][ 18 ][ 14 ]]
[[ string->string ][ !!! *2* !!! ][ 127 ][ 24 ][ --- ]]
[[ string->container::string ][ !!! *3* !!! ][ 142 ][ 26 ][ --- ]]
[[ string->char ][ !!! *7* !!! ][ 110 ][ 23 ][ 17 ]]
[[ string->signed char ][ !!! *7* !!! ][ 114 ][ 23 ][ 24 ]]
[[ string->unsigned char ][ !!! *7* !!! ][ 110 ][ 25 ][ 24 ]]
[[ int->string ][ !!! *12* !!! ][ 127 ][ 31 ][ 22 ]]
[[ short->string ][ !!! *13* !!! ][ 129 ][ 31 ][ 22 ]]
[[ long int->string ][ !!! *12* !!! ][ 125 ][ 30 ][ 22 ]]
[[ long long->string ][ !!! *13* !!! ][ 127 ][ 34 ][ 24 ]]
[[ unsigned int->string ][ !!! *13* !!! ][ 127 ][ 27 ][ 21 ]]
[[ unsigned short->string ][ !!! *12* !!! ][ 127 ][ 28 ][ 22 ]]
[[ unsigned long int->string ][ !!! *12* !!! ][ 131 ][ 27 ][ 22 ]]
[[ unsigned long long->string ][ !!! *12* !!! ][ 125 ][ 28 ][ 24 ]]
[[ float->string ][ 51 ][ 200 ][ 81 ][ !!! *40* !!! ]]
[[ double->string ][ 56 ][ 194 ][ 82 ][ !!! *48* !!! ]]
[[ long double->string ][ 65 ][ 220 ][ 82 ][ !!! *41* !!! ]]
[[ char*->char ][ !!! *<1* !!! ][ 104 ][ 10 ][ 9 ]]
[[ char*->signed char ][ !!! *<1* !!! ][ 101 ][ 10 ][ 11 ]]
[[ char*->unsigned char ][ !!! *<1* !!! ][ 99 ][ 10 ][ 12 ]]
[[ char*->int ][ !!! *6* !!! ][ 112 ][ 23 ][ 24 ]]
[[ char*->short ][ !!! *6* !!! ][ 115 ][ 21 ][ 23 ]]
[[ char*->long int ][ !!! *8* !!! ][ 111 ][ 21 ][ 24 ]]
[[ char*->long long ][ !!! *9* !!! ][ 112 ][ 21 ][ 30 ]]
[[ char*->unsigned int ][ !!! *7* !!! ][ 112 ][ 22 ][ 24 ]]
[[ char*->unsigned short ][ !!! *6* !!! ][ 119 ][ 19 ][ 23 ]]
[[ char*->unsigned long int ][ !!! *7* !!! ][ 115 ][ 22 ][ 23 ]]
[[ char*->unsigned long long ][ !!! *7* !!! ][ 115 ][ 20 ][ 23 ]]
[[ char*->float ][ !!! *12* !!! ][ 153 ][ 54 ][ 39 ]]
[[ char*->double ][ !!! *12* !!! ][ 153 ][ 61 ][ 41 ]]
[[ char*->long double ][ 108 ][ 160 ][ 61 ][ !!! *49* !!! ]]
[[ char*->array<char, 50> ][ !!! *<1* !!! ][ 107 ][ 20 ][ 14 ]]
[[ char*->string ][ !!! *7* !!! ][ 123 ][ 26 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 121 ][ 24 ][ --- ]]
[[ unsigned char*->char ][ !!! *<1* !!! ][ 97 ][ 10 ][ 9 ]]
[[ unsigned char*->signed char ][ !!! *<1* !!! ][ 98 ][ 10 ][ 12 ]]
[[ unsigned char*->unsigned char ][ !!! *<1* !!! ][ 99 ][ 11 ][ 12 ]]
[[ unsigned char*->int ][ !!! *6* !!! ][ 112 ][ 22 ][ 24 ]]
[[ unsigned char*->short ][ !!! *10* !!! ][ 111 ][ 24 ][ 24 ]]
[[ unsigned char*->long int ][ !!! *8* !!! ][ 110 ][ 23 ][ 24 ]]
[[ unsigned char*->long long ][ !!! *9* !!! ][ 115 ][ 21 ][ 25 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 111 ][ 24 ][ 23 ]]
[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 118 ][ 19 ][ 23 ]]
[[ unsigned char*->unsigned long int ][ !!! *8* !!! ][ 112 ][ 21 ][ 23 ]]
[[ unsigned char*->unsigned long long ][ !!! *13* !!! ][ 109 ][ 20 ][ 23 ]]
[[ unsigned char*->float ][ !!! *12* !!! ][ 154 ][ 56 ][ 39 ]]
[[ unsigned char*->double ][ !!! *17* !!! ][ 150 ][ 58 ][ 41 ]]
[[ unsigned char*->long double ][ 108 ][ 149 ][ 68 ][ !!! *43* !!! ]]
[[ unsigned char*->array<char, 50> ][ !!! *1* !!! ][ 107 ][ 19 ][ 15 ]]
[[ unsigned char*->string ][ !!! *8* !!! ][ 124 ][ 26 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *4* !!! ][ 121 ][ 24 ][ --- ]]
[[ signed char*->char ][ !!! *<1* !!! ][ 99 ][ 10 ][ 9 ]]
[[ signed char*->signed char ][ !!! *<1* !!! ][ 99 ][ 10 ][ 10 ]]
[[ signed char*->unsigned char ][ !!! *<1* !!! ][ 99 ][ 10 ][ 12 ]]
[[ signed char*->int ][ !!! *6* !!! ][ 113 ][ 28 ][ 24 ]]
[[ signed char*->short ][ !!! *6* !!! ][ 110 ][ 21 ][ 25 ]]
[[ signed char*->long int ][ !!! *8* !!! ][ 110 ][ 21 ][ 24 ]]
[[ signed char*->long long ][ !!! *9* !!! ][ 116 ][ 21 ][ 24 ]]
[[ signed char*->unsigned int ][ !!! *7* !!! ][ 114 ][ 21 ][ 23 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 116 ][ 20 ][ 23 ]]
[[ signed char*->unsigned long int ][ !!! *8* !!! ][ 113 ][ 27 ][ 23 ]]
[[ signed char*->unsigned long long ][ !!! *8* !!! ][ 110 ][ 20 ][ 23 ]]
[[ signed char*->float ][ !!! *12* !!! ][ 155 ][ 53 ][ 44 ]]
[[ signed char*->double ][ !!! *13* !!! ][ 150 ][ 60 ][ 42 ]]
[[ signed char*->long double ][ 108 ][ 151 ][ 62 ][ !!! *44* !!! ]]
[[ signed char*->array<char, 50> ][ !!! *1* !!! ][ 107 ][ 19 ][ 15 ]]
[[ signed char*->string ][ !!! *8* !!! ][ 124 ][ 26 ][ --- ]]
[[ signed char*->container::string ][ !!! *4* !!! ][ 121 ][ 24 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 103 ][ 14 ][ 10 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 102 ][ 15 ][ 12 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 102 ][ 14 ][ 12 ]]
[[ iterator_range<char*>->int ][ !!! *6* !!! ][ 115 ][ 23 ][ 24 ]]
[[ iterator_range<char*>->short ][ !!! *5* !!! ][ 110 ][ 22 ][ 24 ]]
[[ iterator_range<char*>->long int ][ !!! *7* !!! ][ 109 ][ 22 ][ 29 ]]
[[ iterator_range<char*>->long long ][ !!! *7* !!! ][ 111 ][ 24 ][ 28 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 114 ][ 22 ][ 23 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *5* !!! ][ 115 ][ 20 ][ 22 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *7* !!! ][ 123 ][ 26 ][ 23 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *7* !!! ][ 110 ][ 23 ][ 24 ]]
[[ iterator_range<char*>->float ][ !!! *11* !!! ][ 153 ][ 38 ][ 38 ]]
[[ iterator_range<char*>->double ][ !!! *11* !!! ][ 140 ][ 43 ][ 40 ]]
[[ iterator_range<char*>->long double ][ 108 ][ 147 ][ !!! *41* !!! ][ 46 ]]
[[ iterator_range<char*>->array<char, 50> ][ !!! *<1* !!! ][ 109 ][ 22 ][ 15 ]]
[[ iterator_range<char*>->string ][ !!! *8* !!! ][ 122 ][ 29 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *3* !!! ][ 117 ][ 23 ][ --- ]]
[[ array<char, 50>->char ][ !!! *<1* !!! ][ 98 ][ 10 ][ 9 ]]
[[ array<char, 50>->signed char ][ !!! *<1* !!! ][ 99 ][ 9 ][ 12 ]]
[[ array<char, 50>->unsigned char ][ !!! *<1* !!! ][ 102 ][ 9 ][ 12 ]]
[[ array<char, 50>->int ][ !!! *6* !!! ][ 119 ][ 23 ][ 23 ]]
[[ array<char, 50>->short ][ !!! *6* !!! ][ 111 ][ 21 ][ 26 ]]
[[ array<char, 50>->long int ][ !!! *7* !!! ][ 115 ][ 20 ][ 28 ]]
[[ array<char, 50>->long long ][ !!! *9* !!! ][ 110 ][ 21 ][ 26 ]]
[[ array<char, 50>->unsigned int ][ !!! *6* !!! ][ 115 ][ 22 ][ 23 ]]
[[ array<char, 50>->unsigned short ][ !!! *6* !!! ][ 115 ][ 19 ][ 23 ]]
[[ array<char, 50>->unsigned long int ][ !!! *7* !!! ][ 118 ][ 23 ][ 23 ]]
[[ array<char, 50>->unsigned long long ][ !!! *7* !!! ][ 109 ][ 20 ][ 24 ]]
[[ array<char, 50>->float ][ !!! *12* !!! ][ 160 ][ 53 ][ 38 ]]
[[ array<char, 50>->double ][ !!! *11* !!! ][ 147 ][ 57 ][ 41 ]]
[[ array<char, 50>->long double ][ 109 ][ 154 ][ 59 ][ !!! *42* !!! ]]
[[ array<char, 50>->array<char, 50> ][ !!! *1* !!! ][ 105 ][ 19 ][ 14 ]]
[[ array<char, 50>->string ][ !!! *8* !!! ][ 129 ][ 26 ][ --- ]]
[[ array<char, 50>->container::string ][ !!! *4* !!! ][ 116 ][ 25 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 118 ][ 24 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 242 ][ 132 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 94 ][ 8 ][ --- ]]
]
[endsect]
[section GNU C++ version 4.5.3]
[table:id Performance Table ( GNU C++ version 4.5.3)
[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
[[ string->char ][ !!! *<1* !!! ][ 153 ][ 15 ][ 9 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 134 ][ 8 ][ 10 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 97 ][ 8 ][ 14 ]]
[[ string->int ][ !!! *7* !!! ][ 115 ][ 22 ][ 22 ]]
[[ string->short ][ !!! *5* !!! ][ 112 ][ 19 ][ 21 ]]
[[ string->long int ][ !!! *7* !!! ][ 110 ][ 19 ][ 24 ]]
[[ string->long long ][ !!! *7* !!! ][ 115 ][ 21 ][ 23 ]]
[[ string->unsigned int ][ !!! *6* !!! ][ 113 ][ 20 ][ 23 ]]
[[ string->unsigned short ][ !!! *5* !!! ][ 116 ][ 18 ][ 23 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 111 ][ 20 ][ 23 ]]
[[ string->unsigned long long ][ !!! *7* !!! ][ 115 ][ 18 ][ 23 ]]
[[ string->float ][ !!! *14* !!! ][ 153 ][ 55 ][ 38 ]]
[[ string->double ][ !!! *11* !!! ][ 151 ][ 60 ][ 38 ]]
[[ string->long double ][ 107 ][ 151 ][ 59 ][ !!! *44* !!! ]]
[[ string->array<char, 50> ][ !!! *<1* !!! ][ 107 ][ 18 ][ 12 ]]
[[ string->string ][ !!! *2* !!! ][ 129 ][ 49 ][ --- ]]
[[ string->container::string ][ !!! *9* !!! ][ 199 ][ 22 ][ --- ]]
[[ string->char ][ !!! *7* !!! ][ 114 ][ 27 ][ 16 ]]
[[ string->signed char ][ !!! *7* !!! ][ 116 ][ 32 ][ 23 ]]
[[ string->unsigned char ][ !!! *7* !!! ][ 114 ][ 27 ][ 22 ]]
[[ int->string ][ !!! *11* !!! ][ 125 ][ 31 ][ 21 ]]
[[ short->string ][ !!! *11* !!! ][ 126 ][ 33 ][ 21 ]]
[[ long int->string ][ !!! *11* !!! ][ 126 ][ 32 ][ 22 ]]
[[ long long->string ][ !!! *11* !!! ][ 118 ][ 30 ][ 23 ]]
[[ unsigned int->string ][ !!! *11* !!! ][ 125 ][ 31 ][ 20 ]]
[[ unsigned short->string ][ !!! *12* !!! ][ 128 ][ 30 ][ 21 ]]
[[ unsigned long int->string ][ !!! *11* !!! ][ 131 ][ 30 ][ 21 ]]
[[ unsigned long long->string ][ !!! *11* !!! ][ 127 ][ 32 ][ 23 ]]
[[ float->string ][ 49 ][ 197 ][ 92 ][ !!! *39* !!! ]]
[[ double->string ][ 56 ][ 195 ][ 80 ][ !!! *43* !!! ]]
[[ long double->string ][ 60 ][ 222 ][ 88 ][ !!! *42* !!! ]]
[[ char*->char ][ !!! *<1* !!! ][ 100 ][ 10 ][ 9 ]]
[[ char*->signed char ][ !!! *<1* !!! ][ 99 ][ 10 ][ 10 ]]
[[ char*->unsigned char ][ !!! *<1* !!! ][ 106 ][ 10 ][ 10 ]]
[[ char*->int ][ !!! *7* !!! ][ 113 ][ 23 ][ 22 ]]
[[ char*->short ][ !!! *6* !!! ][ 113 ][ 21 ][ 23 ]]
[[ char*->long int ][ !!! *8* !!! ][ 116 ][ 21 ][ 23 ]]
[[ char*->long long ][ !!! *8* !!! ][ 115 ][ 21 ][ 21 ]]
[[ char*->unsigned int ][ !!! *6* !!! ][ 114 ][ 25 ][ 22 ]]
[[ char*->unsigned short ][ !!! *6* !!! ][ 119 ][ 20 ][ 23 ]]
[[ char*->unsigned long int ][ !!! *8* !!! ][ 114 ][ 23 ][ 23 ]]
[[ char*->unsigned long long ][ !!! *7* !!! ][ 111 ][ 20 ][ 24 ]]
[[ char*->float ][ !!! *16* !!! ][ 154 ][ 54 ][ 38 ]]
[[ char*->double ][ !!! *12* !!! ][ 149 ][ 59 ][ 40 ]]
[[ char*->long double ][ 107 ][ 166 ][ 62 ][ !!! *44* !!! ]]
[[ char*->array<char, 50> ][ !!! *1* !!! ][ 108 ][ 20 ][ 12 ]]
[[ char*->string ][ !!! *8* !!! ][ 125 ][ 28 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 123 ][ 24 ][ --- ]]
[[ unsigned char*->char ][ !!! *<1* !!! ][ 104 ][ 11 ][ 9 ]]
[[ unsigned char*->signed char ][ !!! *<1* !!! ][ 106 ][ 10 ][ 10 ]]
[[ unsigned char*->unsigned char ][ !!! *<1* !!! ][ 101 ][ 10 ][ 10 ]]
[[ unsigned char*->int ][ !!! *7* !!! ][ 117 ][ 22 ][ 24 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 111 ][ 26 ][ 22 ]]
[[ unsigned char*->long int ][ !!! *8* !!! ][ 111 ][ 23 ][ 23 ]]
[[ unsigned char*->long long ][ !!! *8* !!! ][ 114 ][ 21 ][ 23 ]]
[[ unsigned char*->unsigned int ][ !!! *7* !!! ][ 115 ][ 20 ][ 25 ]]
[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 113 ][ 20 ][ 22 ]]
[[ unsigned char*->unsigned long int ][ !!! *8* !!! ][ 115 ][ 25 ][ 24 ]]
[[ unsigned char*->unsigned long long ][ !!! *7* !!! ][ 113 ][ 25 ][ 25 ]]
[[ unsigned char*->float ][ !!! *16* !!! ][ 158 ][ 55 ][ 38 ]]
[[ unsigned char*->double ][ !!! *12* !!! ][ 155 ][ 62 ][ 40 ]]
[[ unsigned char*->long double ][ 108 ][ 153 ][ 60 ][ !!! *41* !!! ]]
[[ unsigned char*->array<char, 50> ][ !!! *1* !!! ][ 111 ][ 19 ][ 12 ]]
[[ unsigned char*->string ][ !!! *8* !!! ][ 125 ][ 30 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *4* !!! ][ 121 ][ 23 ][ --- ]]
[[ signed char*->char ][ !!! *<1* !!! ][ 98 ][ 14 ][ 9 ]]
[[ signed char*->signed char ][ !!! *<1* !!! ][ 98 ][ 11 ][ 10 ]]
[[ signed char*->unsigned char ][ !!! *<1* !!! ][ 99 ][ 10 ][ 10 ]]
[[ signed char*->int ][ !!! *7* !!! ][ 111 ][ 22 ][ 24 ]]
[[ signed char*->short ][ !!! *6* !!! ][ 123 ][ 22 ][ 23 ]]
[[ signed char*->long int ][ !!! *8* !!! ][ 112 ][ 21 ][ 23 ]]
[[ signed char*->long long ][ !!! *8* !!! ][ 114 ][ 24 ][ 24 ]]
[[ signed char*->unsigned int ][ !!! *6* !!! ][ 114 ][ 19 ][ 22 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 112 ][ 21 ][ 24 ]]
[[ signed char*->unsigned long int ][ !!! *8* !!! ][ 114 ][ 23 ][ 22 ]]
[[ signed char*->unsigned long long ][ !!! *8* !!! ][ 116 ][ 22 ][ 24 ]]
[[ signed char*->float ][ !!! *16* !!! ][ 156 ][ 55 ][ 38 ]]
[[ signed char*->double ][ !!! *12* !!! ][ 151 ][ 59 ][ 39 ]]
[[ signed char*->long double ][ 111 ][ 159 ][ 60 ][ !!! *44* !!! ]]
[[ signed char*->array<char, 50> ][ !!! *1* !!! ][ 107 ][ 24 ][ 12 ]]
[[ signed char*->string ][ !!! *8* !!! ][ 122 ][ 28 ][ --- ]]
[[ signed char*->container::string ][ !!! *4* !!! ][ 122 ][ 23 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 103 ][ 13 ][ 10 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 103 ][ 13 ][ 10 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 104 ][ 14 ][ 10 ]]
[[ iterator_range<char*>->int ][ !!! *6* !!! ][ 115 ][ 23 ][ 24 ]]
[[ iterator_range<char*>->short ][ !!! *7* !!! ][ 111 ][ 21 ][ 24 ]]
[[ iterator_range<char*>->long int ][ !!! *7* !!! ][ 108 ][ 21 ][ 23 ]]
[[ iterator_range<char*>->long long ][ !!! *7* !!! ][ 114 ][ 24 ][ 23 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 111 ][ 22 ][ 23 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *5* !!! ][ 114 ][ 20 ][ 23 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *7* !!! ][ 119 ][ 25 ][ 24 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *7* !!! ][ 110 ][ 20 ][ 24 ]]
[[ iterator_range<char*>->float ][ !!! *15* !!! ][ 148 ][ 38 ][ 40 ]]
[[ iterator_range<char*>->double ][ !!! *10* !!! ][ 146 ][ 41 ][ 40 ]]
[[ iterator_range<char*>->long double ][ 103 ][ 138 ][ !!! *39* !!! ][ 42 ]]
[[ iterator_range<char*>->array<char, 50> ][ !!! *<1* !!! ][ 109 ][ 22 ][ 13 ]]
[[ iterator_range<char*>->string ][ !!! *7* !!! ][ 121 ][ 32 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *3* !!! ][ 120 ][ 24 ][ --- ]]
[[ array<char, 50>->char ][ !!! *<1* !!! ][ 102 ][ 9 ][ 9 ]]
[[ array<char, 50>->signed char ][ !!! *<1* !!! ][ 97 ][ 9 ][ 10 ]]
[[ array<char, 50>->unsigned char ][ !!! *<1* !!! ][ 99 ][ 9 ][ 10 ]]
[[ array<char, 50>->int ][ !!! *7* !!! ][ 114 ][ 22 ][ 23 ]]
[[ array<char, 50>->short ][ !!! *6* !!! ][ 116 ][ 21 ][ 23 ]]
[[ array<char, 50>->long int ][ !!! *7* !!! ][ 109 ][ 20 ][ 23 ]]
[[ array<char, 50>->long long ][ !!! *7* !!! ][ 114 ][ 21 ][ 23 ]]
[[ array<char, 50>->unsigned int ][ !!! *7* !!! ][ 119 ][ 20 ][ 25 ]]
[[ array<char, 50>->unsigned short ][ !!! *6* !!! ][ 120 ][ 20 ][ 23 ]]
[[ array<char, 50>->unsigned long int ][ !!! *7* !!! ][ 113 ][ 20 ][ 21 ]]
[[ array<char, 50>->unsigned long long ][ !!! *7* !!! ][ 112 ][ 20 ][ 24 ]]
[[ array<char, 50>->float ][ !!! *16* !!! ][ 155 ][ 57 ][ 38 ]]
[[ array<char, 50>->double ][ !!! *11* !!! ][ 152 ][ 59 ][ 42 ]]
[[ array<char, 50>->long double ][ 107 ][ 152 ][ 60 ][ !!! *41* !!! ]]
[[ array<char, 50>->array<char, 50> ][ !!! *1* !!! ][ 111 ][ 20 ][ 12 ]]
[[ array<char, 50>->string ][ !!! *8* !!! ][ 123 ][ 36 ][ --- ]]
[[ array<char, 50>->container::string ][ !!! *4* !!! ][ 128 ][ 23 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 118 ][ 26 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 233 ][ 120 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 97 ][ 8 ][ --- ]]
]
[endsect]
[section GNU C++ version 4.4.7]
[table:id Performance Table ( GNU C++ version 4.4.7)
[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
[[ string->char ][ !!! *<1* !!! ][ 111 ][ 8 ][ 9 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 100 ][ 8 ][ 10 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 102 ][ 8 ][ 11 ]]
[[ string->int ][ !!! *6* !!! ][ 114 ][ 21 ][ 23 ]]
[[ string->short ][ !!! *5* !!! ][ 120 ][ 21 ][ 29 ]]
[[ string->long int ][ !!! *7* !!! ][ 114 ][ 22 ][ 26 ]]
[[ string->long long ][ !!! *7* !!! ][ 118 ][ 21 ][ 23 ]]
[[ string->unsigned int ][ !!! *7* !!! ][ 115 ][ 21 ][ 23 ]]
[[ string->unsigned short ][ !!! *5* !!! ][ 119 ][ 18 ][ 22 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 115 ][ 20 ][ 23 ]]
[[ string->unsigned long long ][ !!! *9* !!! ][ 116 ][ 26 ][ 24 ]]
[[ string->float ][ !!! *12* !!! ][ 165 ][ 53 ][ 40 ]]
[[ string->double ][ !!! *12* !!! ][ 154 ][ 54 ][ 40 ]]
[[ string->long double ][ 112 ][ 148 ][ 61 ][ !!! *45* !!! ]]
[[ string->array<char, 50> ][ !!! *<1* !!! ][ 120 ][ 19 ][ 14 ]]
[[ string->string ][ !!! *2* !!! ][ 141 ][ 55 ][ --- ]]
[[ string->container::string ][ !!! *2* !!! ][ 164 ][ 36 ][ --- ]]
[[ string->char ][ !!! *7* !!! ][ 161 ][ 24 ][ 18 ]]
[[ string->signed char ][ !!! *6* !!! ][ 109 ][ 25 ][ 24 ]]
[[ string->unsigned char ][ !!! *6* !!! ][ 109 ][ 25 ][ 25 ]]
[[ int->string ][ !!! *11* !!! ][ 128 ][ 32 ][ 23 ]]
[[ short->string ][ !!! *12* !!! ][ 136 ][ 54 ][ 34 ]]
[[ long int->string ][ !!! *15* !!! ][ 187 ][ 41 ][ 23 ]]
[[ long long->string ][ !!! *11* !!! ][ 128 ][ 30 ][ 29 ]]
[[ unsigned int->string ][ !!! *13* !!! ][ 124 ][ 29 ][ 23 ]]
[[ unsigned short->string ][ !!! *11* !!! ][ 128 ][ 30 ][ 22 ]]
[[ unsigned long int->string ][ !!! *11* !!! ][ 131 ][ 30 ][ 22 ]]
[[ unsigned long long->string ][ !!! *11* !!! ][ 133 ][ 33 ][ 29 ]]
[[ float->string ][ 52 ][ 187 ][ 90 ][ !!! *39* !!! ]]
[[ double->string ][ 58 ][ 190 ][ 86 ][ !!! *45* !!! ]]
[[ long double->string ][ 70 ][ 218 ][ 88 ][ !!! *47* !!! ]]
[[ char*->char ][ !!! *<1* !!! ][ 99 ][ 11 ][ 9 ]]
[[ char*->signed char ][ !!! *<1* !!! ][ 99 ][ 11 ][ 10 ]]
[[ char*->unsigned char ][ !!! *<1* !!! ][ 100 ][ 12 ][ 10 ]]
[[ char*->int ][ !!! *6* !!! ][ 117 ][ 23 ][ 21 ]]
[[ char*->short ][ !!! *6* !!! ][ 115 ][ 28 ][ 23 ]]
[[ char*->long int ][ !!! *7* !!! ][ 119 ][ 22 ][ 24 ]]
[[ char*->long long ][ !!! *7* !!! ][ 114 ][ 23 ][ 22 ]]
[[ char*->unsigned int ][ !!! *6* !!! ][ 113 ][ 21 ][ 21 ]]
[[ char*->unsigned short ][ !!! *6* !!! ][ 120 ][ 21 ][ 21 ]]
[[ char*->unsigned long int ][ !!! *7* !!! ][ 117 ][ 25 ][ 23 ]]
[[ char*->unsigned long long ][ !!! *7* !!! ][ 119 ][ 23 ][ 21 ]]
[[ char*->float ][ !!! *13* !!! ][ 160 ][ 61 ][ 36 ]]
[[ char*->double ][ !!! *13* !!! ][ 152 ][ 54 ][ 40 ]]
[[ char*->long double ][ 116 ][ 173 ][ 58 ][ !!! *43* !!! ]]
[[ char*->array<char, 50> ][ !!! *1* !!! ][ 121 ][ 20 ][ 12 ]]
[[ char*->string ][ !!! *7* !!! ][ 126 ][ 29 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 119 ][ 27 ][ --- ]]
[[ unsigned char*->char ][ !!! *<1* !!! ][ 96 ][ 12 ][ 9 ]]
[[ unsigned char*->signed char ][ !!! *<1* !!! ][ 95 ][ 11 ][ 12 ]]
[[ unsigned char*->unsigned char ][ !!! *<1* !!! ][ 95 ][ 12 ][ 12 ]]
[[ unsigned char*->int ][ !!! *6* !!! ][ 113 ][ 27 ][ 24 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 120 ][ 23 ][ 21 ]]
[[ unsigned char*->long int ][ !!! *7* !!! ][ 114 ][ 22 ][ 23 ]]
[[ unsigned char*->long long ][ !!! *7* !!! ][ 114 ][ 23 ][ 23 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 115 ][ 23 ][ 23 ]]
[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 120 ][ 21 ][ 23 ]]
[[ unsigned char*->unsigned long int ][ !!! *7* !!! ][ 117 ][ 23 ][ 21 ]]
[[ unsigned char*->unsigned long long ][ !!! *7* !!! ][ 121 ][ 23 ][ 21 ]]
[[ unsigned char*->float ][ !!! *12* !!! ][ 161 ][ 58 ][ 39 ]]
[[ unsigned char*->double ][ !!! *13* !!! ][ 153 ][ 54 ][ 38 ]]
[[ unsigned char*->long double ][ 110 ][ 150 ][ 62 ][ !!! *43* !!! ]]
[[ unsigned char*->array<char, 50> ][ !!! *1* !!! ][ 113 ][ 20 ][ 12 ]]
[[ unsigned char*->string ][ !!! *8* !!! ][ 124 ][ 30 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *3* !!! ][ 118 ][ 27 ][ --- ]]
[[ signed char*->char ][ !!! *<1* !!! ][ 99 ][ 11 ][ 9 ]]
[[ signed char*->signed char ][ !!! *<1* !!! ][ 102 ][ 12 ][ 10 ]]
[[ signed char*->unsigned char ][ !!! *<1* !!! ][ 99 ][ 12 ][ 10 ]]
[[ signed char*->int ][ !!! *6* !!! ][ 114 ][ 30 ][ 23 ]]
[[ signed char*->short ][ !!! *6* !!! ][ 118 ][ 23 ][ 23 ]]
[[ signed char*->long int ][ !!! *7* !!! ][ 119 ][ 22 ][ 21 ]]
[[ signed char*->long long ][ !!! *7* !!! ][ 114 ][ 23 ][ 26 ]]
[[ signed char*->unsigned int ][ !!! *6* !!! ][ 114 ][ 26 ][ 23 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 121 ][ 22 ][ 23 ]]
[[ signed char*->unsigned long int ][ !!! *7* !!! ][ 126 ][ 23 ][ 21 ]]
[[ signed char*->unsigned long long ][ !!! *7* !!! ][ 114 ][ 22 ][ 21 ]]
[[ signed char*->float ][ !!! *12* !!! ][ 163 ][ 57 ][ 39 ]]
[[ signed char*->double ][ !!! *13* !!! ][ 156 ][ 53 ][ 40 ]]
[[ signed char*->long double ][ 112 ][ 156 ][ 56 ][ !!! *42* !!! ]]
[[ signed char*->array<char, 50> ][ !!! *1* !!! ][ 117 ][ 20 ][ 12 ]]
[[ signed char*->string ][ !!! *8* !!! ][ 127 ][ 28 ][ --- ]]
[[ signed char*->container::string ][ !!! *4* !!! ][ 124 ][ 27 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 103 ][ 13 ][ 8 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 107 ][ 13 ][ 9 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 121 ][ 26 ][ 13 ]]
[[ iterator_range<char*>->int ][ !!! *6* !!! ][ 165 ][ 33 ][ 23 ]]
[[ iterator_range<char*>->short ][ !!! *8* !!! ][ 175 ][ 34 ][ 29 ]]
[[ iterator_range<char*>->long int ][ !!! *14* !!! ][ 160 ][ 33 ][ 23 ]]
[[ iterator_range<char*>->long long ][ !!! *10* !!! ][ 199 ][ 35 ][ 28 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 131 ][ 24 ][ 16 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *7* !!! ][ 110 ][ 22 ][ 16 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *7* !!! ][ 111 ][ 22 ][ 14 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *8* !!! ][ 115 ][ 24 ][ 15 ]]
[[ iterator_range<char*>->float ][ !!! *13* !!! ][ 134 ][ 40 ][ 33 ]]
[[ iterator_range<char*>->double ][ !!! *15* !!! ][ 140 ][ 59 ][ 41 ]]
[[ iterator_range<char*>->long double ][ 131 ][ 146 ][ 53 ][ !!! *38* !!! ]]
[[ iterator_range<char*>->string ][ !!! *9* !!! ][ 121 ][ 31 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *4* !!! ][ 115 ][ 25 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 113 ][ 25 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 234 ][ 117 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 97 ][ 9 ][ --- ]]
[[ signed char*->container::string ][ !!! *4* !!! ][ 112 ][ 27 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 103 ][ 14 ][ 9 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 104 ][ 16 ][ 10 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 103 ][ 16 ][ 10 ]]
[[ iterator_range<char*>->int ][ !!! *6* !!! ][ 121 ][ 22 ][ 21 ]]
[[ iterator_range<char*>->short ][ !!! *7* !!! ][ 112 ][ 23 ][ 23 ]]
[[ iterator_range<char*>->long int ][ !!! *7* !!! ][ 115 ][ 24 ][ 23 ]]
[[ iterator_range<char*>->long long ][ !!! *7* !!! ][ 113 ][ 24 ][ 23 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 117 ][ 26 ][ 23 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *5* !!! ][ 120 ][ 20 ][ 23 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *7* !!! ][ 124 ][ 28 ][ 21 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *7* !!! ][ 113 ][ 22 ][ 21 ]]
[[ iterator_range<char*>->float ][ !!! *11* !!! ][ 190 ][ 58 ][ 63 ]]
[[ iterator_range<char*>->double ][ !!! *20* !!! ][ 194 ][ 44 ][ 39 ]]
[[ iterator_range<char*>->long double ][ 116 ][ 145 ][ 46 ][ !!! *44* !!! ]]
[[ iterator_range<char*>->array<char, 50> ][ !!! *<1* !!! ][ 116 ][ 23 ][ 15 ]]
[[ iterator_range<char*>->string ][ !!! *7* !!! ][ 127 ][ 33 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *3* !!! ][ 112 ][ 24 ][ --- ]]
[[ array<char, 50>->char ][ !!! *<1* !!! ][ 98 ][ 11 ][ 10 ]]
[[ array<char, 50>->signed char ][ !!! *<1* !!! ][ 99 ][ 12 ][ 15 ]]
[[ array<char, 50>->unsigned char ][ !!! *<1* !!! ][ 100 ][ 11 ][ 10 ]]
[[ array<char, 50>->int ][ !!! *6* !!! ][ 114 ][ 27 ][ 22 ]]
[[ array<char, 50>->short ][ !!! *5* !!! ][ 113 ][ 23 ][ 23 ]]
[[ array<char, 50>->long int ][ !!! *7* !!! ][ 118 ][ 22 ][ 23 ]]
[[ array<char, 50>->long long ][ !!! *7* !!! ][ 114 ][ 26 ][ 23 ]]
[[ array<char, 50>->unsigned int ][ !!! *6* !!! ][ 113 ][ 27 ][ 23 ]]
[[ array<char, 50>->unsigned short ][ !!! *5* !!! ][ 124 ][ 21 ][ 23 ]]
[[ array<char, 50>->unsigned long int ][ !!! *7* !!! ][ 116 ][ 23 ][ 21 ]]
[[ array<char, 50>->unsigned long long ][ !!! *7* !!! ][ 115 ][ 22 ][ 21 ]]
[[ array<char, 50>->float ][ !!! *11* !!! ][ 162 ][ 58 ][ 36 ]]
[[ array<char, 50>->double ][ !!! *13* !!! ][ 155 ][ 54 ][ 44 ]]
[[ array<char, 50>->long double ][ 111 ][ 149 ][ 55 ][ !!! *42* !!! ]]
[[ array<char, 50>->array<char, 50> ][ !!! *1* !!! ][ 114 ][ 18 ][ 14 ]]
[[ array<char, 50>->string ][ !!! *7* !!! ][ 129 ][ 29 ][ --- ]]
[[ array<char, 50>->container::string ][ !!! *3* !!! ][ 113 ][ 26 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 114 ][ 25 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 236 ][ 121 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 97 ][ 8 ][ --- ]]
]
[endsect]
[section GNU C++ version 4.6.1]
[table:id Performance Table ( GNU C++ version 4.6.1)
[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
[[ string->char ][ !!! *<1* !!! ][ 140 ][ 17 ][ 13 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 129 ][ 8 ][ 10 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 91 ][ 8 ][ 10 ]]
[[ string->int ][ !!! *6* !!! ][ 110 ][ 20 ][ 14 ]]
[[ string->short ][ !!! *5* !!! ][ 106 ][ 20 ][ 14 ]]
[[ string->long int ][ !!! *7* !!! ][ 107 ][ 22 ][ 14 ]]
[[ string->long long ][ !!! *7* !!! ][ 112 ][ 21 ][ 14 ]]
[[ string->unsigned int ][ !!! *6* !!! ][ 110 ][ 20 ][ 14 ]]
[[ string->unsigned short ][ !!! *5* !!! ][ 107 ][ 18 ][ 14 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 108 ][ 23 ][ 14 ]]
[[ string->unsigned long long ][ !!! *7* !!! ][ 108 ][ 21 ][ 14 ]]
[[ string->float ][ !!! *12* !!! ][ 154 ][ 57 ][ 32 ]]
[[ string->double ][ !!! *11* !!! ][ 151 ][ 61 ][ 33 ]]
[[ string->long double ][ 109 ][ 187 ][ 79 ][ !!! *55* !!! ]]
[[ string->string ][ !!! *2* !!! ][ 122 ][ 27 ][ --- ]]
[[ string->container::string ][ !!! *3* !!! ][ 123 ][ 22 ][ --- ]]
[[ string->char ][ !!! *7* !!! ][ 109 ][ 27 ][ 17 ]]
[[ string->signed char ][ !!! *7* !!! ][ 110 ][ 25 ][ 22 ]]
[[ string->unsigned char ][ !!! *7* !!! ][ 112 ][ 27 ][ 24 ]]
[[ int->string ][ !!! *12* !!! ][ 187 ][ 48 ][ 37 ]]
[[ short->string ][ !!! *18* !!! ][ 133 ][ 33 ][ 20 ]]
[[ long int->string ][ !!! *12* !!! ][ 129 ][ 32 ][ 21 ]]
[[ long long->string ][ !!! *12* !!! ][ 127 ][ 35 ][ 23 ]]
[[ unsigned int->string ][ !!! *15* !!! ][ 133 ][ 31 ][ 21 ]]
[[ unsigned short->string ][ !!! *12* !!! ][ 133 ][ 31 ][ 21 ]]
[[ unsigned long int->string ][ !!! *12* !!! ][ 132 ][ 31 ][ 21 ]]
[[ unsigned long long->string ][ !!! *12* !!! ][ 127 ][ 29 ][ 24 ]]
[[ float->string ][ 53 ][ 215 ][ 103 ][ !!! *40* !!! ]]
[[ double->string ][ 58 ][ 215 ][ 103 ][ !!! *41* !!! ]]
[[ long double->string ][ 67 ][ 227 ][ 112 ][ !!! *45* !!! ]]
[[ char*->char ][ !!! *<1* !!! ][ 132 ][ 12 ][ 8 ]]
[[ char*->signed char ][ !!! *<1* !!! ][ 98 ][ 11 ][ 9 ]]
[[ char*->unsigned char ][ !!! *<1* !!! ][ 96 ][ 10 ][ 9 ]]
[[ char*->int ][ !!! *6* !!! ][ 109 ][ 22 ][ 14 ]]
[[ char*->short ][ !!! *5* !!! ][ 109 ][ 26 ][ 14 ]]
[[ char*->long int ][ !!! *7* !!! ][ 111 ][ 23 ][ 14 ]]
[[ char*->long long ][ !!! *8* !!! ][ 112 ][ 25 ][ 16 ]]
[[ char*->unsigned int ][ !!! *6* !!! ][ 113 ][ 19 ][ 14 ]]
[[ char*->unsigned short ][ !!! *6* !!! ][ 111 ][ 20 ][ 14 ]]
[[ char*->unsigned long int ][ !!! *7* !!! ][ 109 ][ 21 ][ 14 ]]
[[ char*->unsigned long long ][ !!! *7* !!! ][ 111 ][ 22 ][ 14 ]]
[[ char*->float ][ !!! *12* !!! ][ 156 ][ 62 ][ 32 ]]
[[ char*->double ][ !!! *13* !!! ][ 156 ][ 65 ][ 33 ]]
[[ char*->long double ][ 108 ][ 156 ][ 59 ][ !!! *36* !!! ]]
[[ char*->string ][ !!! *7* !!! ][ 123 ][ 29 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 116 ][ 24 ][ --- ]]
[[ unsigned char*->char ][ !!! *<1* !!! ][ 96 ][ 12 ][ 8 ]]
[[ unsigned char*->signed char ][ !!! *<1* !!! ][ 97 ][ 9 ][ 9 ]]
[[ unsigned char*->unsigned char ][ !!! *<1* !!! ][ 93 ][ 10 ][ 9 ]]
[[ unsigned char*->int ][ !!! *6* !!! ][ 110 ][ 22 ][ 14 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 111 ][ 22 ][ 15 ]]
[[ unsigned char*->long int ][ !!! *8* !!! ][ 110 ][ 23 ][ 14 ]]
[[ unsigned char*->long long ][ !!! *7* !!! ][ 111 ][ 25 ][ 14 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 111 ][ 21 ][ 16 ]]
[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 110 ][ 21 ][ 15 ]]
[[ unsigned char*->unsigned long int ][ !!! *8* !!! ][ 114 ][ 21 ][ 14 ]]
[[ unsigned char*->unsigned long long ][ !!! *8* !!! ][ 108 ][ 23 ][ 15 ]]
[[ unsigned char*->float ][ !!! *12* !!! ][ 154 ][ 62 ][ 33 ]]
[[ unsigned char*->double ][ !!! *14* !!! ][ 157 ][ 65 ][ 32 ]]
[[ unsigned char*->long double ][ 107 ][ 154 ][ 56 ][ !!! *36* !!! ]]
[[ unsigned char*->string ][ !!! *9* !!! ][ 122 ][ 28 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *4* !!! ][ 118 ][ 26 ][ --- ]]
[[ signed char*->char ][ !!! *<1* !!! ][ 94 ][ 10 ][ 8 ]]
[[ signed char*->signed char ][ !!! *<1* !!! ][ 94 ][ 12 ][ 9 ]]
[[ signed char*->unsigned char ][ !!! *<1* !!! ][ 95 ][ 12 ][ 9 ]]
[[ signed char*->int ][ !!! *7* !!! ][ 109 ][ 22 ][ 14 ]]
[[ signed char*->short ][ !!! *5* !!! ][ 108 ][ 22 ][ 14 ]]
[[ signed char*->long int ][ !!! *7* !!! ][ 110 ][ 23 ][ 14 ]]
[[ signed char*->long long ][ !!! *7* !!! ][ 110 ][ 25 ][ 15 ]]
[[ signed char*->unsigned int ][ !!! *6* !!! ][ 109 ][ 20 ][ 15 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 107 ][ 21 ][ 14 ]]
[[ signed char*->unsigned long int ][ !!! *8* !!! ][ 111 ][ 21 ][ 14 ]]
[[ signed char*->unsigned long long ][ !!! *7* !!! ][ 109 ][ 23 ][ 14 ]]
[[ signed char*->float ][ !!! *12* !!! ][ 156 ][ 61 ][ 31 ]]
[[ signed char*->double ][ !!! *13* !!! ][ 156 ][ 68 ][ 33 ]]
[[ signed char*->long double ][ 109 ][ 159 ][ 56 ][ !!! *36* !!! ]]
[[ signed char*->string ][ !!! *9* !!! ][ 123 ][ 28 ][ --- ]]
[[ signed char*->container::string ][ !!! *4* !!! ][ 125 ][ 25 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 100 ][ 13 ][ 8 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 98 ][ 14 ][ 9 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 99 ][ 12 ][ 10 ]]
[[ iterator_range<char*>->int ][ !!! *6* !!! ][ 108 ][ 21 ][ 16 ]]
[[ iterator_range<char*>->short ][ !!! *5* !!! ][ 110 ][ 22 ][ 17 ]]
[[ iterator_range<char*>->long int ][ !!! *7* !!! ][ 107 ][ 22 ][ 15 ]]
[[ iterator_range<char*>->long long ][ !!! *7* !!! ][ 110 ][ 27 ][ 15 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 107 ][ 24 ][ 15 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *5* !!! ][ 106 ][ 21 ][ 15 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *7* !!! ][ 110 ][ 21 ][ 16 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *7* !!! ][ 109 ][ 23 ][ 16 ]]
[[ iterator_range<char*>->float ][ !!! *11* !!! ][ 137 ][ 46 ][ 33 ]]
[[ iterator_range<char*>->double ][ !!! *11* !!! ][ 131 ][ 50 ][ 33 ]]
[[ iterator_range<char*>->long double ][ 107 ][ 136 ][ 44 ][ !!! *39* !!! ]]
[[ iterator_range<char*>->string ][ !!! *8* !!! ][ 117 ][ 32 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *3* !!! ][ 111 ][ 23 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 110 ][ 33 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 241 ][ 152 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 90 ][ 8 ][ --- ]]
]
[endsect]
[section GNU C++ version 4.5.4]
[table:id Performance Table ( GNU C++ version 4.5.4)
[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
[[ string->char ][ !!! *<1* !!! ][ 147 ][ 12 ][ 8 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 138 ][ 13 ][ 10 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 86 ][ 12 ][ 9 ]]
[[ string->int ][ !!! *7* !!! ][ 103 ][ 20 ][ 15 ]]
[[ string->short ][ !!! *5* !!! ][ 103 ][ 20 ][ 15 ]]
[[ string->long int ][ !!! *7* !!! ][ 103 ][ 22 ][ 15 ]]
[[ string->long long ][ !!! *7* !!! ][ 104 ][ 22 ][ 16 ]]
[[ string->unsigned int ][ !!! *6* !!! ][ 108 ][ 19 ][ 15 ]]
[[ string->unsigned short ][ !!! *5* !!! ][ 104 ][ 19 ][ 15 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 103 ][ 20 ][ 16 ]]
[[ string->unsigned long long ][ !!! *7* !!! ][ 101 ][ 22 ][ 14 ]]
[[ string->float ][ !!! *13* !!! ][ 148 ][ 58 ][ 35 ]]
[[ string->double ][ !!! *13* !!! ][ 147 ][ 60 ][ 34 ]]
[[ string->long double ][ 103 ][ 149 ][ 56 ][ !!! *38* !!! ]]
[[ string->string ][ !!! *2* !!! ][ 127 ][ 27 ][ --- ]]
[[ string->container::string ][ !!! *3* !!! ][ 101 ][ 24 ][ --- ]]
[[ string->char ][ !!! *7* !!! ][ 108 ][ 35 ][ 17 ]]
[[ string->signed char ][ !!! *7* !!! ][ 112 ][ 26 ][ 23 ]]
[[ string->unsigned char ][ !!! *7* !!! ][ 113 ][ 25 ][ 25 ]]
[[ int->string ][ !!! *11* !!! ][ 183 ][ 47 ][ 40 ]]
[[ short->string ][ !!! *14* !!! ][ 153 ][ 35 ][ 23 ]]
[[ long int->string ][ !!! *12* !!! ][ 135 ][ 32 ][ 22 ]]
[[ long long->string ][ !!! *11* !!! ][ 131 ][ 30 ][ 24 ]]
[[ unsigned int->string ][ !!! *12* !!! ][ 137 ][ 31 ][ 22 ]]
[[ unsigned short->string ][ !!! *11* !!! ][ 137 ][ 33 ][ 22 ]]
[[ unsigned long int->string ][ !!! *11* !!! ][ 136 ][ 36 ][ 23 ]]
[[ unsigned long long->string ][ !!! *11* !!! ][ 127 ][ 29 ][ 23 ]]
[[ float->string ][ 56 ][ 218 ][ 107 ][ !!! *44* !!! ]]
[[ double->string ][ 63 ][ 223 ][ 106 ][ !!! *44* !!! ]]
[[ long double->string ][ 69 ][ 229 ][ 118 ][ !!! *49* !!! ]]
[[ char*->char ][ !!! *<1* !!! ][ 91 ][ 12 ][ 9 ]]
[[ char*->signed char ][ !!! *<1* !!! ][ 100 ][ 11 ][ 11 ]]
[[ char*->unsigned char ][ !!! *<1* !!! ][ 97 ][ 12 ][ 10 ]]
[[ char*->int ][ !!! *7* !!! ][ 112 ][ 23 ][ 16 ]]
[[ char*->short ][ !!! *6* !!! ][ 116 ][ 23 ][ 16 ]]
[[ char*->long int ][ !!! *8* !!! ][ 113 ][ 23 ][ 16 ]]
[[ char*->long long ][ !!! *8* !!! ][ 122 ][ 28 ][ 16 ]]
[[ char*->unsigned int ][ !!! *6* !!! ][ 117 ][ 21 ][ 15 ]]
[[ char*->unsigned short ][ !!! *6* !!! ][ 113 ][ 21 ][ 16 ]]
[[ char*->unsigned long int ][ !!! *7* !!! ][ 118 ][ 22 ][ 16 ]]
[[ char*->unsigned long long ][ !!! *8* !!! ][ 113 ][ 22 ][ 17 ]]
[[ char*->float ][ !!! *11* !!! ][ 164 ][ 67 ][ 34 ]]
[[ char*->double ][ !!! *13* !!! ][ 163 ][ 66 ][ 35 ]]
[[ char*->long double ][ 110 ][ 164 ][ 63 ][ !!! *39* !!! ]]
[[ char*->string ][ !!! *8* !!! ][ 130 ][ 30 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 113 ][ 24 ][ --- ]]
[[ unsigned char*->char ][ !!! *<1* !!! ][ 98 ][ 11 ][ 10 ]]
[[ unsigned char*->signed char ][ !!! *<1* !!! ][ 97 ][ 12 ][ 10 ]]
[[ unsigned char*->unsigned char ][ !!! *<1* !!! ][ 97 ][ 11 ][ 10 ]]
[[ unsigned char*->int ][ !!! *7* !!! ][ 112 ][ 23 ][ 16 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 115 ][ 22 ][ 20 ]]
[[ unsigned char*->long int ][ !!! *8* !!! ][ 112 ][ 23 ][ 15 ]]
[[ unsigned char*->long long ][ !!! *8* !!! ][ 115 ][ 29 ][ 17 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 114 ][ 21 ][ 14 ]]
[[ unsigned char*->unsigned short ][ !!! *7* !!! ][ 112 ][ 22 ][ 15 ]]
[[ unsigned char*->unsigned long int ][ !!! *7* !!! ][ 115 ][ 23 ][ 14 ]]
[[ unsigned char*->unsigned long long ][ !!! *8* !!! ][ 112 ][ 24 ][ 15 ]]
[[ unsigned char*->float ][ !!! *12* !!! ][ 161 ][ 66 ][ 34 ]]
[[ unsigned char*->double ][ !!! *13* !!! ][ 162 ][ 66 ][ 36 ]]
[[ unsigned char*->long double ][ 112 ][ 161 ][ 63 ][ !!! *39* !!! ]]
[[ unsigned char*->string ][ !!! *9* !!! ][ 127 ][ 29 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *4* !!! ][ 111 ][ 25 ][ --- ]]
[[ signed char*->char ][ !!! *<1* !!! ][ 104 ][ 11 ][ 8 ]]
[[ signed char*->signed char ][ !!! *<1* !!! ][ 98 ][ 11 ][ 11 ]]
[[ signed char*->unsigned char ][ !!! *<1* !!! ][ 98 ][ 11 ][ 11 ]]
[[ signed char*->int ][ !!! *7* !!! ][ 112 ][ 23 ][ 16 ]]
[[ signed char*->short ][ !!! *7* !!! ][ 113 ][ 23 ][ 15 ]]
[[ signed char*->long int ][ !!! *8* !!! ][ 112 ][ 22 ][ 14 ]]
[[ signed char*->long long ][ !!! *8* !!! ][ 115 ][ 25 ][ 16 ]]
[[ signed char*->unsigned int ][ !!! *8* !!! ][ 114 ][ 21 ][ 18 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 112 ][ 22 ][ 15 ]]
[[ signed char*->unsigned long int ][ !!! *8* !!! ][ 116 ][ 22 ][ 15 ]]
[[ signed char*->unsigned long long ][ !!! *8* !!! ][ 113 ][ 23 ][ 16 ]]
[[ signed char*->float ][ !!! *13* !!! ][ 161 ][ 65 ][ 34 ]]
[[ signed char*->double ][ !!! *12* !!! ][ 172 ][ 67 ][ 34 ]]
[[ signed char*->long double ][ 110 ][ 164 ][ 63 ][ !!! *38* !!! ]]
[[ signed char*->string ][ !!! *9* !!! ][ 131 ][ 30 ][ --- ]]
[[ signed char*->container::string ][ !!! *4* !!! ][ 112 ][ 24 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 103 ][ 12 ][ 8 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 101 ][ 13 ][ 9 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 103 ][ 13 ][ 10 ]]
[[ iterator_range<char*>->int ][ !!! *7* !!! ][ 113 ][ 26 ][ 14 ]]
[[ iterator_range<char*>->short ][ !!! *5* !!! ][ 115 ][ 21 ][ 16 ]]
[[ iterator_range<char*>->long int ][ !!! *7* !!! ][ 115 ][ 22 ][ 15 ]]
[[ iterator_range<char*>->long long ][ !!! *7* !!! ][ 116 ][ 25 ][ 16 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 115 ][ 24 ][ 23 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *5* !!! ][ 113 ][ 22 ][ 16 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *7* !!! ][ 117 ][ 20 ][ 16 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *7* !!! ][ 114 ][ 21 ][ 16 ]]
[[ iterator_range<char*>->float ][ !!! *11* !!! ][ 145 ][ 51 ][ 34 ]]
[[ iterator_range<char*>->double ][ !!! *11* !!! ][ 139 ][ 53 ][ 35 ]]
[[ iterator_range<char*>->long double ][ 109 ][ 147 ][ 44 ][ !!! *38* !!! ]]
[[ iterator_range<char*>->string ][ !!! *9* !!! ][ 123 ][ 36 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *3* !!! ][ 113 ][ 20 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 117 ][ 23 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 262 ][ 150 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 97 ][ 9 ][ --- ]]
]
[endsect]
[section GNU C++ version 4.4.6]
[table:id Performance Table ( GNU C++ version 4.4.6)
[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
[[ string->char ][ !!! *<1* !!! ][ 162 ][ 17 ][ 8 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 103 ][ 9 ][ 9 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 91 ][ 9 ][ 9 ]]
[[ string->int ][ !!! *6* !!! ][ 104 ][ 21 ][ 14 ]]
[[ string->short ][ !!! *5* !!! ][ 107 ][ 22 ][ 14 ]]
[[ string->long int ][ !!! *7* !!! ][ 106 ][ 23 ][ 15 ]]
[[ string->long long ][ !!! *7* !!! ][ 104 ][ 21 ][ 16 ]]
[[ string->unsigned int ][ !!! *6* !!! ][ 100 ][ 20 ][ 16 ]]
[[ string->unsigned short ][ !!! *5* !!! ][ 102 ][ 20 ][ 16 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 106 ][ 25 ][ 16 ]]
[[ string->unsigned long long ][ !!! *7* !!! ][ 109 ][ 25 ][ 14 ]]
[[ string->float ][ !!! *13* !!! ][ 142 ][ 48 ][ 32 ]]
[[ string->double ][ !!! *13* !!! ][ 162 ][ 62 ][ 33 ]]
[[ string->long double ][ 119 ][ 164 ][ 62 ][ !!! *37* !!! ]]
[[ string->string ][ !!! *2* !!! ][ 122 ][ 27 ][ --- ]]
[[ string->container::string ][ !!! *2* !!! ][ 107 ][ 23 ][ --- ]]
[[ string->char ][ !!! *6* !!! ][ 110 ][ 24 ][ 15 ]]
[[ string->signed char ][ !!! *6* !!! ][ 107 ][ 24 ][ 21 ]]
[[ string->unsigned char ][ !!! *6* !!! ][ 106 ][ 27 ][ 21 ]]
[[ int->string ][ !!! *12* !!! ][ 122 ][ 31 ][ 21 ]]
[[ short->string ][ !!! *12* !!! ][ 136 ][ 29 ][ 20 ]]
[[ long int->string ][ !!! *12* !!! ][ 127 ][ 32 ][ 19 ]]
[[ long long->string ][ !!! *12* !!! ][ 121 ][ 32 ][ 21 ]]
[[ unsigned int->string ][ !!! *12* !!! ][ 133 ][ 32 ][ 19 ]]
[[ unsigned short->string ][ !!! *12* !!! ][ 126 ][ 33 ][ 20 ]]
[[ unsigned long int->string ][ !!! *11* !!! ][ 126 ][ 34 ][ 19 ]]
[[ unsigned long long->string ][ !!! *12* !!! ][ 125 ][ 28 ][ 21 ]]
[[ float->string ][ 47 ][ 183 ][ 86 ][ !!! *43* !!! ]]
[[ double->string ][ 57 ][ 184 ][ 90 ][ !!! *42* !!! ]]
[[ long double->string ][ 64 ][ 199 ][ 87 ][ !!! *46* !!! ]]
[[ char*->char ][ !!! *<1* !!! ][ 95 ][ 10 ][ 8 ]]
[[ char*->signed char ][ !!! *<1* !!! ][ 90 ][ 12 ][ 9 ]]
[[ char*->unsigned char ][ !!! *<1* !!! ][ 93 ][ 12 ][ 9 ]]
[[ char*->int ][ !!! *6* !!! ][ 108 ][ 24 ][ 14 ]]
[[ char*->short ][ !!! *6* !!! ][ 106 ][ 23 ][ 14 ]]
[[ char*->long int ][ !!! *7* !!! ][ 107 ][ 24 ][ 17 ]]
[[ char*->long long ][ !!! *7* !!! ][ 109 ][ 25 ][ 17 ]]
[[ char*->unsigned int ][ !!! *6* !!! ][ 104 ][ 23 ][ 17 ]]
[[ char*->unsigned short ][ !!! *6* !!! ][ 102 ][ 22 ][ 17 ]]
[[ char*->unsigned long int ][ !!! *7* !!! ][ 107 ][ 23 ][ 17 ]]
[[ char*->unsigned long long ][ !!! *7* !!! ][ 115 ][ 26 ][ 14 ]]
[[ char*->float ][ !!! *12* !!! ][ 150 ][ 56 ][ 30 ]]
[[ char*->double ][ !!! *12* !!! ][ 165 ][ 66 ][ 32 ]]
[[ char*->long double ][ 116 ][ 173 ][ 66 ][ !!! *37* !!! ]]
[[ char*->string ][ !!! *7* !!! ][ 120 ][ 28 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 108 ][ 26 ][ --- ]]
[[ unsigned char*->char ][ !!! *<1* !!! ][ 90 ][ 12 ][ 8 ]]
[[ unsigned char*->signed char ][ !!! *<1* !!! ][ 91 ][ 11 ][ 9 ]]
[[ unsigned char*->unsigned char ][ !!! *<1* !!! ][ 91 ][ 12 ][ 9 ]]
[[ unsigned char*->int ][ !!! *6* !!! ][ 106 ][ 24 ][ 14 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 108 ][ 24 ][ 14 ]]
[[ unsigned char*->long int ][ !!! *7* !!! ][ 116 ][ 23 ][ 14 ]]
[[ unsigned char*->long long ][ !!! *7* !!! ][ 108 ][ 28 ][ 14 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 107 ][ 22 ][ 14 ]]
[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 105 ][ 21 ][ 16 ]]
[[ unsigned char*->unsigned long int ][ !!! *7* !!! ][ 106 ][ 25 ][ 16 ]]
[[ unsigned char*->unsigned long long ][ !!! *7* !!! ][ 105 ][ 24 ][ 17 ]]
[[ unsigned char*->float ][ !!! *14* !!! ][ 150 ][ 57 ][ 33 ]]
[[ unsigned char*->double ][ !!! *14* !!! ][ 171 ][ 72 ][ 34 ]]
[[ unsigned char*->long double ][ 118 ][ 171 ][ 73 ][ !!! *38* !!! ]]
[[ unsigned char*->string ][ !!! *8* !!! ][ 120 ][ 29 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *3* !!! ][ 114 ][ 26 ][ --- ]]
[[ signed char*->char ][ !!! *<1* !!! ][ 92 ][ 12 ][ 8 ]]
[[ signed char*->signed char ][ !!! *<1* !!! ][ 92 ][ 12 ][ 9 ]]
[[ signed char*->unsigned char ][ !!! *<1* !!! ][ 91 ][ 14 ][ 9 ]]
[[ signed char*->int ][ !!! *6* !!! ][ 109 ][ 22 ][ 15 ]]
[[ signed char*->short ][ !!! *6* !!! ][ 106 ][ 24 ][ 17 ]]
[[ signed char*->long int ][ !!! *7* !!! ][ 107 ][ 24 ][ 16 ]]
[[ signed char*->long long ][ !!! *7* !!! ][ 106 ][ 24 ][ 14 ]]
[[ signed char*->unsigned int ][ !!! *6* !!! ][ 106 ][ 22 ][ 14 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 104 ][ 20 ][ 14 ]]
[[ signed char*->unsigned long int ][ !!! *7* !!! ][ 105 ][ 22 ][ 16 ]]
[[ signed char*->unsigned long long ][ !!! *7* !!! ][ 108 ][ 24 ][ 15 ]]
[[ signed char*->float ][ !!! *14* !!! ][ 147 ][ 54 ][ 32 ]]
[[ signed char*->double ][ !!! *14* !!! ][ 170 ][ 68 ][ 37 ]]
[[ signed char*->long double ][ 133 ][ 167 ][ 66 ][ !!! *37* !!! ]]
[[ signed char*->string ][ !!! *8* !!! ][ 119 ][ 30 ][ --- ]]
[[ signed char*->container::string ][ !!! *3* !!! ][ 108 ][ 24 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 98 ][ 13 ][ 8 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 98 ][ 15 ][ 9 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 97 ][ 15 ][ 9 ]]
[[ iterator_range<char*>->int ][ !!! *6* !!! ][ 107 ][ 27 ][ 14 ]]
[[ iterator_range<char*>->short ][ !!! *5* !!! ][ 109 ][ 23 ][ 14 ]]
[[ iterator_range<char*>->long int ][ !!! *7* !!! ][ 109 ][ 22 ][ 14 ]]
[[ iterator_range<char*>->long long ][ !!! *7* !!! ][ 107 ][ 24 ][ 14 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 120 ][ 23 ][ 14 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *5* !!! ][ 104 ][ 21 ][ 17 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *8* !!! ][ 108 ][ 25 ][ 16 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *7* !!! ][ 106 ][ 25 ][ 15 ]]
[[ iterator_range<char*>->float ][ !!! *13* !!! ][ 132 ][ 41 ][ 32 ]]
[[ iterator_range<char*>->double ][ !!! *12* !!! ][ 136 ][ 45 ][ 32 ]]
[[ iterator_range<char*>->long double ][ 113 ][ 138 ][ 50 ][ !!! *36* !!! ]]
[[ iterator_range<char*>->string ][ !!! *7* !!! ][ 114 ][ 33 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *2* !!! ][ 105 ][ 24 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 112 ][ 31 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 233 ][ 199 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 129 ][ 10 ][ --- ]]
]
[endsect]
[/ END of section, generated by performance measuring program ]
[endsect]

177
include/boost/lexical_cast.hpp
View File

@@ -134,10 +134,16 @@ namespace boost
}
} // namespace boost
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(__SUNPRO_CC)
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(__SUNPRO_CC) && !defined(__PGIC__)
#include <cmath>
#include <istream>
#if !defined(BOOST_NO_CXX11_HDR_ARRAY) && defined(BOOST_HAS_TR1_ARRAY)
#include <array>
#endif
#include <boost/array.hpp>
#include <boost/numeric/conversion/cast.hpp>
#include <boost/type_traits/make_unsigned.hpp>
#include <boost/type_traits/is_signed.hpp>
@@ -260,6 +266,32 @@ namespace boost {
typedef CharT type;
};
template<typename CharT, std::size_t N>
struct stream_char<boost::array<CharT, N> >
{
typedef BOOST_DEDUCED_TYPENAME stream_char<CharT>::type type;
};
template<typename CharT, std::size_t N>
struct stream_char<boost::array<const CharT, N> >
{
typedef BOOST_DEDUCED_TYPENAME stream_char<CharT>::type type;
};
#if !defined(BOOST_NO_CXX11_HDR_ARRAY) && defined(BOOST_HAS_TR1_ARRAY)
template <typename CharT, std::size_t N>
struct stream_char<std::array<CharT, N> >
{
typedef BOOST_DEDUCED_TYPENAME stream_char<CharT>::type type;
};
template <typename CharT, std::size_t N>
struct stream_char<std::array<const CharT, N> >
{
typedef BOOST_DEDUCED_TYPENAME stream_char<CharT>::type type;
};
#endif // !defined(BOOST_NO_CXX11_HDR_ARRAY) && defined(BOOST_HAS_TR1_ARRAY)
#if !defined(BOOST_LCAST_NO_WCHAR_T) && defined(BOOST_NO_INTRINSIC_WCHAR_T)
template<>
struct stream_char<wchar_t>
@@ -1259,7 +1291,6 @@ namespace boost {
return true;
}
#ifndef BOOST_LCAST_NO_WCHAR_T
template <class T>
bool shl_char_array(T const* str)
{
@@ -1268,7 +1299,13 @@ namespace boost {
"Use boost::locale instead" );
return shl_input_streamable(str);
}
#endif
bool shl_char_array_limited(CharT const* str, std::size_t max_size)
{
start = const_cast<CharT*>(str);
finish = std::find(start, start + max_size, static_cast<CharT>(0));
return true;
}
template<typename InputStreamable>
bool shl_input_streamable(InputStreamable& input)
@@ -1495,6 +1532,56 @@ namespace boost {
#endif
}
template <std::size_t N>
bool operator<<(boost::array<CharT, N> const& input)
{ return shl_char_array_limited(input.begin(), N); }
template <std::size_t N>
bool operator<<(boost::array<unsigned char, N> const& input)
{ return ((*this) << reinterpret_cast<boost::array<char, N> const& >(input)); }
template <std::size_t N>
bool operator<<(boost::array<signed char, N> const& input)
{ return ((*this) << reinterpret_cast<boost::array<char, N> const& >(input)); }
template <std::size_t N>
bool operator<<(boost::array<const CharT, N> const& input)
{ return shl_char_array_limited(input.begin(), N); }
template <std::size_t N>
bool operator<<(boost::array<const unsigned char, N> const& input)
{ return ((*this) << reinterpret_cast<boost::array<const char, N> const& >(input)); }
template <std::size_t N>
bool operator<<(boost::array<const signed char, N> const& input)
{ return ((*this) << reinterpret_cast<boost::array<const char, N> const& >(input)); }
#if !defined(BOOST_NO_CXX11_HDR_ARRAY) && defined(BOOST_HAS_TR1_ARRAY)
template <std::size_t N>
bool operator<<(std::array<CharT, N> const& input)
{ return shl_char_array_limited(input.begin(), N); }
template <std::size_t N>
bool operator<<(std::array<unsigned char, N> const& input)
{ return ((*this) << reinterpret_cast<boost::array<char, N> const& >(input)); }
template <std::size_t N>
bool operator<<(std::array<signed char, N> const& input)
{ return ((*this) << reinterpret_cast<boost::array<char, N> const& >(input)); }
template <std::size_t N>
bool operator<<(std::array<const CharT, N> const& input)
{ return shl_char_array_limited(input.begin(), N); }
template <std::size_t N>
bool operator<<(std::array<const unsigned char, N> const& input)
{ return ((*this) << reinterpret_cast<boost::array<const char, N> const& >(input)); }
template <std::size_t N>
bool operator<<(std::array<const signed char, N> const& input)
{ return ((*this) << reinterpret_cast<boost::array<const char, N> const& >(input)); }
#endif // !defined(BOOST_NO_CXX11_HDR_ARRAY) && defined(BOOST_HAS_TR1_ARRAY)
template <class InStreamable>
bool operator<<(const InStreamable& input) { return shl_input_streamable(input); }
@@ -1674,6 +1761,70 @@ namespace boost {
template<class Alloc>
bool operator>>(::boost::container::basic_string<CharT,Traits,Alloc>& str) { str.assign(start, finish); return true; }
private:
template <std::size_t N, class ArrayT>
bool shr_std_array(ArrayT& output, boost::mpl::bool_<true> /*is_T_char_tag*/)
{
using namespace std;
const std::size_t size = finish - start;
if (size > N - 1) { // `-1` because we need to store \0 at the end
return false;
}
memcpy(output.begin(), start, size * sizeof(CharT));
*(output.begin() + size) = static_cast<CharT>(0);
return true;
}
template <std::size_t N, class ArrayT>
bool shr_std_array(ArrayT& output, boost::mpl::bool_<false> /*is_T_char_tag*/)
{
return shr_using_base_class(output); // Array consist of non character types or unmatching character type
}
public:
template <std::size_t N>
bool operator>>(boost::array<CharT, N>& output)
{
typedef boost::mpl::bool_<true> tag_type;
return shr_std_array<N>(output, tag_type());
}
template <std::size_t N>
bool operator>>(boost::array<unsigned char, N>& output)
{
return ((*this) >> reinterpret_cast<boost::array<char, N>& >(output));
}
template <std::size_t N>
bool operator>>(boost::array<signed char, N>& output)
{
return ((*this) >> reinterpret_cast<boost::array<char, N>& >(output));
}
#if !defined(BOOST_NO_CXX11_HDR_ARRAY) && defined(BOOST_HAS_TR1_ARRAY)
template <std::size_t N>
bool operator>>(std::array<CharT, N>& output)
{
typedef boost::mpl::bool_<true> tag_type;
return shr_std_array<N>(output, tag_type());
}
template <std::size_t N>
bool operator>>(std::array<unsigned char, N>& output)
{
return ((*this) >> reinterpret_cast<std::array<char, N>& >(output));
}
template <std::size_t N>
bool operator>>(std::array<signed char, N>& in)
{
return ((*this) >> reinterpret_cast<std::array<char, N>& >(output));
}
#endif // !defined(BOOST_NO_CXX11_HDR_ARRAY) && defined(BOOST_HAS_TR1_ARRAY)
/*
* case "-0" || "0" || "+0" : output = false; return true;
* case "1" || "+1": output = true; return true;
@@ -1937,11 +2088,6 @@ namespace boost {
"Your compiler does not have full support for char32_t" );
#endif
typedef detail::lcast_src_length<src > lcast_src_length;
std::size_t const src_len = lcast_src_length::value;
char_type buf[src_len + 1];
lcast_src_length::check_coverage();
typedef BOOST_DEDUCED_TYPENAME ::boost::detail::deduce_char_traits<
char_type, Target, Source
>::type traits;
@@ -1959,6 +2105,9 @@ namespace boost {
::boost::detail::is_char_or_wchar<src_char_type >::value
> is_source_input_optimized_t;
// Target type must be default constructible
Target result;
// If we have an optimized conversion for
// Source, we do not need to construct stringbuf.
const bool requires_stringbuf = ::boost::type_traits::ice_or<
@@ -1966,13 +2115,19 @@ namespace boost {
::boost::type_traits::ice_not< is_source_input_optimized_t::value >::value
>::value;
detail::lexical_stream_limited_src<char_type, traits, requires_stringbuf >
interpreter(buf, buf + src_len);
typedef detail::lexical_stream_limited_src<char_type, traits, requires_stringbuf > interpreter_type;
typedef detail::lcast_src_length<src > lcast_src_length;
std::size_t const src_len = lcast_src_length::value;
char_type buf[src_len + 1];
lcast_src_length::check_coverage();
interpreter_type interpreter(buf, buf + src_len);
Target result;
// Disabling ADL, by directly specifying operators.
if(!(interpreter.operator <<(arg) && interpreter.operator >>(result)))
BOOST_LCAST_THROW_BAD_CAST(Source, Target);
return result;
}
};

477
lexical_cast_test.cpp
View File

@@ -4,7 +4,7 @@
//
// Copyright Terje Sletteb and Kevlin Henney, 2005.
// Copyright Alexander Nasonov, 2006.
// Copyright Antony Polukhin, 2011.
// Copyright Antony Polukhin, 2011-2012.
//
// Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
@@ -57,13 +57,6 @@ struct my_allocator : std::allocator<CharT>
{
};
// Test all 65536 values if true:
bool const lcast_test_small_integral_types_completely = false;
// lcast_integral_test_counter: use when testing all values of an integral
// types is not possible. Max. portable value is 32767.
int const lcast_integral_test_counter=1000;
using namespace boost;
void test_conversion_to_char();
@@ -80,18 +73,6 @@ void test_conversion_from_wstring();
void test_conversion_to_wstring();
void test_bad_lexical_cast();
void test_no_whitespace_stripping();
void test_conversion_from_to_short();
void test_conversion_from_to_ushort();
void test_conversion_from_to_int();
void test_conversion_from_to_uint();
void test_conversion_from_to_long();
void test_conversion_from_to_ulong();
void test_conversion_from_to_intmax_t();
void test_conversion_from_to_uintmax_t();
#ifdef LCAST_TEST_LONGLONG
void test_conversion_from_to_longlong();
void test_conversion_from_to_ulonglong();
#endif
#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
void test_traits();
void test_wtraits();
@@ -107,7 +88,6 @@ void test_char16_conversions();
void test_char32_conversions();
#endif
unit_test::test_suite *init_unit_test_suite(int, char *[])
{
unit_test::test_suite *suite =
@@ -128,18 +108,6 @@ unit_test::test_suite *init_unit_test_suite(int, char *[])
#endif
suite->add(BOOST_TEST_CASE(test_bad_lexical_cast));
suite->add(BOOST_TEST_CASE(test_no_whitespace_stripping));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_short));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_ushort));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_int));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_uint));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_long));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_ulong));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_intmax_t));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_uintmax_t));
#ifdef LCAST_TEST_LONGLONG
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_longlong));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_ulonglong));
#endif
#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
suite->add(BOOST_TEST_CASE(&test_traits));
suite->add(BOOST_TEST_CASE(&test_wtraits));
@@ -399,6 +367,7 @@ void test_conversion_to_wchar_t()
BOOST_CHECK_THROW(
lexical_cast<wchar_t>(std::wstring(L"Test")), bad_lexical_cast);
#endif
BOOST_CHECK(true);
}
void test_conversion_from_wstring()
@@ -417,6 +386,7 @@ void test_conversion_from_wstring()
BOOST_CHECK_THROW(
lexical_cast<bool>(std::wstring(L"Test")), bad_lexical_cast);
#endif
BOOST_CHECK(true);
}
void test_conversion_to_wstring()
@@ -441,6 +411,7 @@ void test_conversion_to_wstring()
BOOST_CHECK(L" " == lexical_cast<std::wstring>(std::wstring(L" ")));
BOOST_CHECK(L"" == lexical_cast<std::wstring>(std::wstring(L"")));
#endif
BOOST_CHECK(true);
}
void test_bad_lexical_cast()
@@ -464,444 +435,6 @@ void test_no_whitespace_stripping()
BOOST_CHECK_THROW(lexical_cast<int>("123 "), bad_lexical_cast);
}
// Replace "-,999" with "-999".
template<class CharT>
std::basic_string<CharT> to_str_gcc_workaround(std::basic_string<CharT> str)
{
std::locale loc;
std::numpunct<CharT> const& np = BOOST_USE_FACET(std::numpunct<CharT>, loc);
std::ctype<CharT> const& ct = BOOST_USE_FACET(std::ctype<CharT>, loc);
if(np.grouping().empty())
return str;
CharT prefix[3] = { ct.widen('-'), np.thousands_sep(), CharT() };
if(str.find(prefix) != 0)
return str;
prefix[1] = CharT();
str.replace(0, 2, prefix);
return str;
}
template<class CharT, class T>
std::basic_string<CharT> to_str(T t)
{
std::basic_ostringstream<CharT> o;
o << t;
return to_str_gcc_workaround(o.str());
}
template<class T, class CharT>
void test_conversion_from_integral_to_char(CharT zero)
{
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(0)) == zero + 0);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(1)) == zero + 1);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(2)) == zero + 2);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(3)) == zero + 3);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(4)) == zero + 4);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(5)) == zero + 5);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(6)) == zero + 6);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(7)) == zero + 7);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(8)) == zero + 8);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(9)) == zero + 9);
BOOST_CHECK_THROW(lexical_cast<CharT>(static_cast<T>(10)), bad_lexical_cast);
T t = (std::numeric_limits<T>::max)();
BOOST_CHECK_THROW(lexical_cast<CharT>(t), bad_lexical_cast);
}
template<class T, class CharT>
void test_conversion_from_char_to_integral(CharT zero)
{
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 0)) == static_cast<T>(0) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 1)) == static_cast<T>(1) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 2)) == static_cast<T>(2) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 3)) == static_cast<T>(3) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 4)) == static_cast<T>(4) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 5)) == static_cast<T>(5) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 6)) == static_cast<T>(6) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 7)) == static_cast<T>(7) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 8)) == static_cast<T>(8) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 9)) == static_cast<T>(9) );
BOOST_CHECK_THROW(lexical_cast<T>( static_cast<CharT>(zero + 10)), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>( static_cast<CharT>(zero - 1)), bad_lexical_cast);
}
template<class T>
void test_conversion_from_integral_to_integral()
{
T t = 0;
BOOST_CHECK(lexical_cast<T>(t) == t);
// Next two variables are used to supress warnings.
int st = 32767; unsigned int ut = st;
t = st;
BOOST_CHECK(lexical_cast<short>(t) == st);
BOOST_CHECK(lexical_cast<unsigned short>(t) == ut);
BOOST_CHECK(lexical_cast<int>(t) == st);
BOOST_CHECK(lexical_cast<unsigned int>(t) == ut);
BOOST_CHECK(lexical_cast<long>(t) == st);
BOOST_CHECK(lexical_cast<unsigned long>(t) == ut);
t = (std::numeric_limits<T>::max)();
BOOST_CHECK(lexical_cast<T>(t) == t);
t = (std::numeric_limits<T>::min)();
BOOST_CHECK(lexical_cast<T>(t) == t);
}
template<class T, class CharT>
void test_conversion_from_integral_to_string(CharT)
{
typedef std::numeric_limits<T> limits;
typedef std::basic_string<CharT> string_type;
T t;
t = (limits::min)();
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
t = (limits::max)();
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
if(limits::digits <= 16 && lcast_test_small_integral_types_completely)
// min and max have already been tested.
for(t = 1 + (limits::min)(); t != (limits::max)(); ++t)
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
else
{
T const min_val = (limits::min)();
T const max_val = (limits::max)();
T const half_max_val = max_val / 2;
T const cnt = lcast_integral_test_counter; // to supress warnings
unsigned int const counter = cnt < half_max_val ? cnt : half_max_val;
unsigned int i;
// Test values around min:
t = min_val;
for(i = 0; i < counter; ++i, ++t)
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
// Test values around max:
t = max_val;
for(i = 0; i < counter; ++i, --t)
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
// Test values around zero:
if(limits::is_signed)
for(t = static_cast<T>(-counter); t < static_cast<T>(counter); ++t)
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
// Test values around 100, 1000, 10000, ...
T ten_power = 100;
for(int e = 2; e <= limits::digits10; ++e, ten_power *= 10)
{
// ten_power + 100 probably never overflows
for(t = ten_power - 100; t != ten_power + 100; ++t)
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
}
}
}
template<class T, class CharT>
void test_conversion_from_string_to_integral(CharT)
{
typedef std::numeric_limits<T> limits;
typedef std::basic_string<CharT> string_type;
string_type s;
string_type const zero = to_str<CharT>(0);
string_type const nine = to_str<CharT>(9);
T const min_val = (limits::min)();
T const max_val = (limits::max)();
s = to_str<CharT>(min_val);
BOOST_CHECK_EQUAL(lexical_cast<T>(s), min_val);
if(limits::is_signed)
{
BOOST_CHECK_THROW(lexical_cast<T>(s + zero), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(s + nine), bad_lexical_cast);
}
s = to_str<CharT>(max_val);
BOOST_CHECK_EQUAL(lexical_cast<T>(s), max_val);
{
BOOST_CHECK_THROW(lexical_cast<T>(s + zero), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(s + nine), bad_lexical_cast);
s = to_str<CharT>(max_val);
for (int i =1; i <=10; ++i) {
s[s.size()-1] += 1;
BOOST_CHECK_THROW(lexical_cast<T>( s ), bad_lexical_cast);
}
s = to_str<CharT>(max_val);
std::locale loc;
typedef std::numpunct<char> numpunct;
if ( BOOST_USE_FACET(numpunct, loc).grouping().empty() ) {
// Following tests work well for locale C
BOOST_CHECK_EQUAL(lexical_cast<T>(to_str<CharT>(0)+s), max_val);
BOOST_CHECK_EQUAL(lexical_cast<T>(to_str<CharT>(0)+to_str<CharT>(0)+s), max_val);
BOOST_CHECK_EQUAL(lexical_cast<T>(to_str<CharT>(0)+to_str<CharT>(0)+to_str<CharT>(0)+s), max_val);
}
for (int i =1; i <=256; ++i) {
BOOST_CHECK_THROW(lexical_cast<T>( to_str<CharT>(i)+s ), bad_lexical_cast);
}
typedef BOOST_DEDUCED_TYPENAME boost::integral_promotion<T>::type promoted;
if ( !(boost::is_same<T, promoted>::value) )
{
promoted prom = max_val;
s = to_str<CharT>(max_val);
for (int i =1; i <=256; ++i) {
BOOST_CHECK_THROW(lexical_cast<T>( to_str<CharT>(prom+i) ), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>( to_str<CharT>(i)+s ), bad_lexical_cast);
}
}
}
if(limits::digits <= 16 && lcast_test_small_integral_types_completely)
// min and max have already been tested.
for(T t = 1 + min_val; t != max_val; ++t)
BOOST_CHECK(lexical_cast<T>(to_str<CharT>(t)) == t);
else
{
T const half_max_val = max_val / 2;
T const cnt = lcast_integral_test_counter; // to supress warnings
unsigned int const counter = cnt < half_max_val ? cnt : half_max_val;
T t;
unsigned int i;
// Test values around min:
t = min_val;
for(i = 0; i < counter; ++i, ++t)
BOOST_CHECK(lexical_cast<T>(to_str<CharT>(t)) == t);
// Test values around max:
t = max_val;
for(i = 0; i < counter; ++i, --t)
BOOST_CHECK(lexical_cast<T>(to_str<CharT>(t)) == t);
// Test values around zero:
if(limits::is_signed)
for(t = static_cast<T>(-counter); t < static_cast<T>(counter); ++t)
BOOST_CHECK(lexical_cast<T>(to_str<CharT>(t)) == t);
// Test values around 100, 1000, 10000, ...
T ten_power = 100;
for(int e = 2; e <= limits::digits10; ++e, ten_power *= 10)
{
// ten_power + 100 probably never overflows
for(t = ten_power - 100; t != ten_power + 100; ++t)
BOOST_CHECK(lexical_cast<T>(to_str<CharT>(t)) == t);
}
}
}
template<class T>
void test_conversion_from_to_integral_for_locale()
{
std::locale current_locale;
typedef std::numpunct<char> numpunct;
numpunct const& np = BOOST_USE_FACET(numpunct, current_locale);
if ( !np.grouping().empty() )
{
BOOST_CHECK_THROW(
lexical_cast<T>( std::string("100") + np.thousands_sep() + np.thousands_sep() + "0" )
, bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>( std::string("100") + np.thousands_sep() ), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>( np.thousands_sep() + std::string("100") ), bad_lexical_cast);
// Exception must not be thrown, when we are using no separators at all
BOOST_CHECK( lexical_cast<T>("30000") == static_cast<T>(30000) );
}
test_conversion_from_integral_to_integral<T>();
test_conversion_from_integral_to_string<T>('0');
test_conversion_from_string_to_integral<T>('0');
#if !defined(BOOST_LCAST_NO_WCHAR_T)
test_conversion_from_integral_to_string<T>(L'0');
test_conversion_from_string_to_integral<T>(L'0');
#endif
}
struct restore_oldloc
{
std::locale oldloc;
~restore_oldloc() { std::locale::global(oldloc); }
};
template<class T>
void test_conversion_from_to_integral()
{
char const zero = '0';
signed char const szero = '0';
unsigned char const uzero = '0';
test_conversion_from_integral_to_char<T>(zero);
test_conversion_from_char_to_integral<T>(zero);
test_conversion_from_integral_to_char<T>(szero);
test_conversion_from_char_to_integral<T>(szero);
test_conversion_from_integral_to_char<T>(uzero);
test_conversion_from_char_to_integral<T>(uzero);
#if !defined(BOOST_LCAST_NO_WCHAR_T) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
wchar_t const wzero = L'0';
test_conversion_from_integral_to_char<T>(wzero);
test_conversion_from_char_to_integral<T>(wzero);
#endif
#if !defined(BOOST_NO_CHAR16_T) && !defined(BOOST_NO_UNICODE_LITERALS)
char16_t const u16zero = u'0';
test_conversion_from_integral_to_char<T>(u16zero);
test_conversion_from_char_to_integral<T>(u16zero);
#endif
#if !defined(BOOST_NO_CHAR32_T) && !defined(BOOST_NO_UNICODE_LITERALS)
char32_t const u32zero = u'0';
test_conversion_from_integral_to_char<T>(u32zero);
test_conversion_from_char_to_integral<T>(u32zero);
#endif
BOOST_CHECK(lexical_cast<T>("-1") == static_cast<T>(-1));
BOOST_CHECK(lexical_cast<T>("-9") == static_cast<T>(-9));
BOOST_CHECK(lexical_cast<T>(-1) == static_cast<T>(-1));
BOOST_CHECK(lexical_cast<T>(-9) == static_cast<T>(-9));
BOOST_CHECK_THROW(lexical_cast<T>("-1.0"), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>("-9.0"), bad_lexical_cast);
BOOST_CHECK(lexical_cast<T>(-1.0) == static_cast<T>(-1));
BOOST_CHECK(lexical_cast<T>(-9.0) == static_cast<T>(-9));
BOOST_CHECK(lexical_cast<T>(static_cast<T>(1)) == static_cast<T>(1));
BOOST_CHECK(lexical_cast<T>(static_cast<T>(9)) == static_cast<T>(9));
BOOST_CHECK_THROW(lexical_cast<T>(1.1f), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(1.1), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(1.1L), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(1.0001f), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(1.0001), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(1.0001L), bad_lexical_cast);
BOOST_CHECK(lexical_cast<T>("+1") == static_cast<T>(1) );
BOOST_CHECK(lexical_cast<T>("+9") == static_cast<T>(9) );
BOOST_CHECK(lexical_cast<T>("+10") == static_cast<T>(10) );
BOOST_CHECK(lexical_cast<T>("+90") == static_cast<T>(90) );
BOOST_CHECK_THROW(lexical_cast<T>("++1"), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>("-+9"), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>("--1"), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>("+-9"), bad_lexical_cast);
// test_conversion_from_to_integral_for_locale
// Overflow test case from David W. Birdsall
std::string must_owerflow_str = "160000000000000000000";
std::string must_owerflow_negative_str = "-160000000000000000000";
for (int i = 0; i < 15; ++i) {
BOOST_CHECK_THROW(lexical_cast<T>(must_owerflow_str), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(must_owerflow_negative_str), bad_lexical_cast);
must_owerflow_str += '0';
must_owerflow_negative_str += '0';
}
typedef std::numpunct<char> numpunct;
restore_oldloc guard;
std::locale const& oldloc = guard.oldloc;
std::string grouping1 = BOOST_USE_FACET(numpunct, oldloc).grouping();
std::string grouping2(grouping1);
test_conversion_from_to_integral_for_locale<T>();
try
{
std::locale newloc("");
std::locale::global(newloc);
grouping2 = BOOST_USE_FACET(numpunct, newloc).grouping();
}
catch(std::exception const& ex)
{
std::string msg("Failed to set system locale: ");
msg += ex.what();
BOOST_TEST_MESSAGE(msg);
}
if(grouping1 != grouping2)
test_conversion_from_to_integral_for_locale<T>();
if(grouping1.empty() && grouping2.empty())
BOOST_TEST_MESSAGE("Formatting with thousands_sep has not been tested");
}
void test_conversion_from_to_short()
{
test_conversion_from_to_integral<short>();
}
void test_conversion_from_to_ushort()
{
test_conversion_from_to_integral<unsigned short>();
}
void test_conversion_from_to_int()
{
test_conversion_from_to_integral<int>();
}
void test_conversion_from_to_uint()
{
test_conversion_from_to_integral<unsigned int>();
}
void test_conversion_from_to_long()
{
test_conversion_from_to_integral<long>();
}
void test_conversion_from_to_ulong()
{
test_conversion_from_to_integral<unsigned long>();
}
void test_conversion_from_to_intmax_t()
{
test_conversion_from_to_integral<boost::intmax_t>();
}
void test_conversion_from_to_uintmax_t()
{
test_conversion_from_to_integral<boost::uintmax_t>();
}
#if defined(BOOST_HAS_LONG_LONG)
void test_conversion_from_to_longlong()
{
test_conversion_from_to_integral<boost::long_long_type>();
}
void test_conversion_from_to_ulonglong()
{
test_conversion_from_to_integral<boost::ulong_long_type>();
}
#elif defined(BOOST_HAS_MS_INT64)
void test_conversion_from_to_longlong()
{
test_conversion_from_to_integral<__int64>();
}
void test_conversion_from_to_ulonglong()
{
test_conversion_from_to_integral<unsigned __int64>();
}
#endif
#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
void test_traits()
@@ -960,6 +493,7 @@ void test_wallocator()
#endif
void test_char_types_conversions()
{
const char c_arr[] = "Test array of chars";
@@ -1040,3 +574,4 @@ void test_char32_conversions()
}
#endif

47
perf/performance_test.cpp
View File

@@ -13,6 +13,7 @@
#define BOOST_CHRONO_HEADER_ONLY
#include <boost/lexical_cast.hpp>
#include <boost/chrono.hpp>
#include <fstream>
#include <cstring>
@@ -21,6 +22,13 @@
// File to output data
std::fstream fout;
namespace boost {
inline std::istream& operator>> (std::istream& in, boost::array<char,50>& res) {
in >> res.begin();
return in;
}
}
template <class OutT, class InT>
static inline void test_lexical(const InT& in_val) {
OutT out_val = boost::lexical_cast<OutT>(in_val);
@@ -37,6 +45,28 @@ static inline void test_ss_constr(const InT& in_val) {
if (ss.fail()) throw std::logic_error("descr");
}
template <class OutT, class CharT, std::size_t N>
static inline void test_ss_constr(const boost::array<CharT, N>& in_val) {
OutT out_val;
std::stringstream ss;
ss << in_val.begin();
if (ss.fail()) throw std::logic_error("descr");
ss >> out_val;
if (ss.fail()) throw std::logic_error("descr");
}
template <class OutT, class StringStreamT, class CharT, std::size_t N>
static inline void test_ss_noconstr(StringStreamT& ss, const boost::array<CharT, N>& in_val) {
OutT out_val;
ss << in_val.begin(); // ss is an instance of std::stringstream
if (ss.fail()) throw std::logic_error("descr");
ss >> out_val;
if (ss.fail()) throw std::logic_error("descr");
/* reseting std::stringstream to use it again */
ss.str(std::string());
ss.clear();
}
template <class OutT, class StringStreamT, class InT>
static inline void test_ss_noconstr(StringStreamT& ss, const InT& in_val) {
OutT out_val;
@@ -64,6 +94,12 @@ struct structure_sprintf {
};
struct structure_sscanf {
template <class OutT, class BufferT, class CharT, std::size_t N>
static inline void test(BufferT* /*buffer*/, const boost::array<CharT, N>& in_val, const char* const conv) {
OutT out_val;
sscanf(in_val.cbegin(), conv, &out_val);
}
template <class OutT, class BufferT, class InT>
static inline void test(BufferT* /*buffer*/, const InT& in_val, const char* const conv) {
OutT out_val;
@@ -229,7 +265,7 @@ void string_like_test_set(const std::string& from) {
perf_test<float, ssc_t>(from + "->float", conv("1.123"), "%f");
perf_test<double, ssc_t>(from + "->double", conv("1.123"), "%lf");
perf_test<long double, ssc_t>(from + "->long double", conv("1.123"), "%Lf");
perf_test<boost::array<char, 50>, ssc_t>(from + "->array<char, 50>", conv("1.123"), "%s");
perf_test<std::string, structure_fake>(from + "->string", conv("string"), "%Lf");
perf_test<boost::container::string, structure_fake>(from + "->container::string"
@@ -268,6 +304,14 @@ struct to_iterator_range {
}
};
struct to_array_50 {
boost::array<char, 50> operator()(const char* const c) const {
boost::array<char, 50> ret;
std::strcpy(ret.begin(), c);
return ret;
}
};
int main(int argc, char** argv) {
BOOST_ASSERT(argc >= 2);
std::string output_path(argv[1]);
@@ -310,6 +354,7 @@ int main(int argc, char** argv) {
string_like_test_set<to_uchar_conv>("unsigned char*");
string_like_test_set<to_schar_conv>("signed char*");
string_like_test_set<to_iterator_range>("iterator_range<char*>");
string_like_test_set<to_array_50>("array<char, 50>");
perf_test<int, structure_fake>("int->int", 100, "");
perf_test<double, structure_fake>("float->double", 100.0f, "");

2
test/Jamfile.v2
View File

@@ -47,5 +47,7 @@ test-suite conversion
<toolset>gcc-4.7:<cflags>-fno-exceptions
]
[ run lexical_cast_iterator_range_test.cpp ]
[ run lexical_cast_arrays_test.cpp ]
[ run lexical_cast_integral_types_test.cpp ]
;

2
test/implicit_cast_fail.cpp
View File

@@ -19,4 +19,6 @@ struct foo
int test_main(int, char*[])
{
foo x = implicit_cast<foo>("foobar");
(void)x; // warning suppression.
return 0;
}

367
test/lexical_cast_arrays_test.cpp Normal file
View File

@@ -0,0 +1,367 @@
// Testing boost::lexical_cast with boost::container::string.
//
// See http://www.boost.org for most recent version, including documentation.
//
// Copyright Antony Polukhin, 2012.
//
// Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt).
#include <boost/lexical_cast.hpp>
#include <boost/test/unit_test.hpp>
#include <boost/array.hpp>
void testing_boost_array_output_conversion();
void testing_std_array_output_conversion();
void testing_boost_array_input_conversion();
void testing_std_array_input_conversion();
using namespace boost;
boost::unit_test::test_suite *init_unit_test_suite(int, char *[])
{
unit_test::test_suite *suite =
BOOST_TEST_SUITE("Testing boost::lexical_cast with boost::array and std::array");
suite->add(BOOST_TEST_CASE(testing_boost_array_output_conversion));
suite->add(BOOST_TEST_CASE(testing_std_array_output_conversion));
suite->add(BOOST_TEST_CASE(testing_boost_array_input_conversion));
suite->add(BOOST_TEST_CASE(testing_std_array_input_conversion));
return suite;
}
template <template <class, std::size_t> class ArrayT, class T>
static void testing_template_array_output_on_spec_value(T val)
{
typedef ArrayT<char, 300> arr_type;
typedef ArrayT<char, 1> short_arr_type;
typedef ArrayT<unsigned char, 300> uarr_type;
typedef ArrayT<unsigned char, 1> ushort_arr_type;
typedef ArrayT<signed char, 4> sarr_type;
typedef ArrayT<signed char, 3> sshort_arr_type;
std::string ethalon("100");
using namespace std;
{
arr_type res1 = lexical_cast<arr_type>(val);
BOOST_CHECK_EQUAL(res1.begin(), ethalon);
const arr_type res2 = lexical_cast<arr_type>(val);
BOOST_CHECK_EQUAL(res2.begin(), ethalon);
BOOST_CHECK_THROW(lexical_cast<short_arr_type>(val), boost::bad_lexical_cast);
}
{
uarr_type res1 = lexical_cast<uarr_type>(val);
BOOST_CHECK_EQUAL(reinterpret_cast<char*>(res1.begin()), ethalon);
const uarr_type res2 = lexical_cast<uarr_type>(val);
BOOST_CHECK_EQUAL(reinterpret_cast<const char*>(res2.begin()), ethalon);
BOOST_CHECK_THROW(lexical_cast<ushort_arr_type>(val), boost::bad_lexical_cast);
}
{
sarr_type res1 = lexical_cast<sarr_type>(val);
BOOST_CHECK_EQUAL(reinterpret_cast<char*>(res1.begin()), ethalon);
const sarr_type res2 = lexical_cast<sarr_type>(val);
BOOST_CHECK_EQUAL(reinterpret_cast<const char*>(res2.begin()), ethalon);
BOOST_CHECK_THROW(lexical_cast<sshort_arr_type>(val), boost::bad_lexical_cast);
}
#if !defined(BOOST_NO_STRINGSTREAM) && !defined(BOOST_NO_STD_WSTRING)
typedef ArrayT<wchar_t, 300> warr_type;
typedef ArrayT<wchar_t, 3> wshort_arr_type;
std::wstring wethalon(L"100");
{
warr_type res = lexical_cast<warr_type>(val);
BOOST_CHECK(res.begin() == wethalon);
}
{
const warr_type res = lexical_cast<warr_type>(val);
BOOST_CHECK(res.begin() == wethalon);
}
BOOST_CHECK_THROW(lexical_cast<wshort_arr_type>(val), boost::bad_lexical_cast);
#endif
#if !defined(BOOST_NO_CHAR16_T) && !defined(BOOST_NO_UNICODE_LITERALS)
typedef ArrayT<char16_t, 300> u16arr_type;
typedef ArrayT<char16_t, 3> u16short_arr_type;
std::u16string u16ethalon(u"100");
{
u16arr_type res = lexical_cast<u16arr_type>(val);
BOOST_CHECK(res.begin() == u16ethalon);
}
{
const u16arr_type res = lexical_cast<u16arr_type>(val);
BOOST_CHECK(res.begin() == u16ethalon);
}
BOOST_CHECK_THROW(lexical_cast<u16short_arr_type>(val), boost::bad_lexical_cast);
#endif
#if !defined(BOOST_NO_CHAR32_T) && !defined(BOOST_NO_UNICODE_LITERALS)
typedef ArrayT<char32_t, 300> u32arr_type;
typedef ArrayT<char32_t, 3> u32short_arr_type;
std::u32string u32ethalon(U"100");
{
u32arr_type res = lexical_cast<u32arr_type>(val);
BOOST_CHECK(res.begin() == u32ethalon);
}
{
const u32arr_type res = lexical_cast<u32arr_type>(val);
BOOST_CHECK(res.begin() == u32ethalon);
}
BOOST_CHECK_THROW(lexical_cast<u32short_arr_type>(val), boost::bad_lexical_cast);
#endif
}
template <template <class, std::size_t> class ArrayT>
static void testing_template_array_output_on_char_value()
{
typedef ArrayT<char, 300> arr_type;
typedef ArrayT<char, 1> short_arr_type;
typedef ArrayT<unsigned char, 300> uarr_type;
typedef ArrayT<unsigned char, 1> ushort_arr_type;
typedef ArrayT<signed char, 4> sarr_type;
typedef ArrayT<signed char, 3> sshort_arr_type;
const char val[] = "100";
std::string ethalon("100");
using namespace std;
{
arr_type res1 = lexical_cast<arr_type>(val);
BOOST_CHECK_EQUAL(res1.begin(), ethalon);
const arr_type res2 = lexical_cast<arr_type>(val);
BOOST_CHECK_EQUAL(res2.begin(), ethalon);
BOOST_CHECK_THROW(lexical_cast<short_arr_type>(val), boost::bad_lexical_cast);
}
{
uarr_type res1 = lexical_cast<uarr_type>(val);
BOOST_CHECK_EQUAL(reinterpret_cast<char*>(res1.begin()), ethalon);
const uarr_type res2 = lexical_cast<uarr_type>(val);
BOOST_CHECK_EQUAL(reinterpret_cast<const char*>(res2.begin()), ethalon);
BOOST_CHECK_THROW(lexical_cast<ushort_arr_type>(val), boost::bad_lexical_cast);
}
{
sarr_type res1 = lexical_cast<sarr_type>(val);
BOOST_CHECK_EQUAL(reinterpret_cast<char*>(res1.begin()), ethalon);
const sarr_type res2 = lexical_cast<sarr_type>(val);
BOOST_CHECK_EQUAL(reinterpret_cast<const char*>(res2.begin()), ethalon);
BOOST_CHECK_THROW(lexical_cast<sshort_arr_type>(val), boost::bad_lexical_cast);
}
#if !defined(BOOST_NO_STRINGSTREAM) && !defined(BOOST_NO_STD_WSTRING)
typedef ArrayT<wchar_t, 4> warr_type;
typedef ArrayT<wchar_t, 3> wshort_arr_type;
std::wstring wethalon(L"100");
{
warr_type res = lexical_cast<warr_type>(val);
BOOST_CHECK(res.begin() == wethalon);
warr_type res3 = lexical_cast<warr_type>(wethalon);
BOOST_CHECK(res3.begin() == wethalon);
}
{
const warr_type res = lexical_cast<warr_type>(val);
BOOST_CHECK(res.begin() == wethalon);
const warr_type res3 = lexical_cast<warr_type>(wethalon);
BOOST_CHECK(res3.begin() == wethalon);
}
BOOST_CHECK_THROW(lexical_cast<wshort_arr_type>(val), boost::bad_lexical_cast);
#endif
#if !defined(BOOST_NO_CHAR16_T) && !defined(BOOST_NO_UNICODE_LITERALS)
typedef ArrayT<char16_t, 300> u16arr_type;
typedef ArrayT<char16_t, 3> u16short_arr_type;
std::u16string u16ethalon(u"100");
{
#ifdef BOOST_STL_SUPPORTS_NEW_UNICODE_LOCALES
u16arr_type res = lexical_cast<u16arr_type>(val);
BOOST_CHECK(res.begin() == u16ethalon);
#endif
u16arr_type res3 = lexical_cast<u16arr_type>(u16ethalon);
BOOST_CHECK(res3.begin() == u16ethalon);
}
{
#ifdef BOOST_STL_SUPPORTS_NEW_UNICODE_LOCALES
const u16arr_type res = lexical_cast<u16arr_type>(val);
BOOST_CHECK(res.begin() == u16ethalon);
#endif
const u16arr_type res3 = lexical_cast<u16arr_type>(u16ethalon);
BOOST_CHECK(res3.begin() == u16ethalon);
}
BOOST_CHECK_THROW(lexical_cast<u16short_arr_type>(val), boost::bad_lexical_cast);
#endif
#if !defined(BOOST_NO_CHAR32_T) && !defined(BOOST_NO_UNICODE_LITERALS)
typedef ArrayT<char32_t, 300> u32arr_type;
typedef ArrayT<char32_t, 3> u32short_arr_type;
std::u32string u32ethalon(U"100");
{
#ifdef BOOST_STL_SUPPORTS_NEW_UNICODE_LOCALES
u32arr_type res = lexical_cast<u32arr_type>(val);
BOOST_CHECK(res.begin() == u32ethalon);
#endif
u32arr_type res3 = lexical_cast<u32arr_type>(u32ethalon);
BOOST_CHECK(res3.begin() == u32ethalon);
}
{
#ifdef BOOST_STL_SUPPORTS_NEW_UNICODE_LOCALES
const u32arr_type res = lexical_cast<u32arr_type>(val);
BOOST_CHECK(res.begin() == u32ethalon);
#endif
const u32arr_type res3 = lexical_cast<u32arr_type>(u32ethalon);
BOOST_CHECK(res3.begin() == u32ethalon);
}
BOOST_CHECK_THROW(lexical_cast<u32short_arr_type>(val), boost::bad_lexical_cast);
#endif
}
void testing_boost_array_output_conversion()
{
testing_template_array_output_on_char_value<boost::array>();
testing_template_array_output_on_spec_value<boost::array>(100);
testing_template_array_output_on_spec_value<boost::array>(static_cast<short>(100));
testing_template_array_output_on_spec_value<boost::array>(static_cast<unsigned short>(100));
testing_template_array_output_on_spec_value<boost::array>(static_cast<unsigned int>(100));
}
void testing_std_array_output_conversion()
{
#if !defined(BOOST_NO_CXX11_HDR_ARRAY) && defined(BOOST_HAS_TR1_ARRAY)
testing_template_array_output_on_char_value<std::array>();
testing_template_array_output_on_spec_value<std::array>(100);
testing_template_array_output_on_spec_value<std::array>(static_cast<short>(100));
testing_template_array_output_on_spec_value<std::array>(static_cast<unsigned short>(100));
testing_template_array_output_on_spec_value<std::array>(static_cast<unsigned int>(100));
#endif
BOOST_CHECK(true);
}
template <template <class, std::size_t> class ArrayT>
static void testing_generic_array_input_conversion()
{
{
ArrayT<char, 4> var_zero_terminated = {{ '1', '0', '0', '\0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_zero_terminated), "100");
BOOST_CHECK_EQUAL(lexical_cast<int>(var_zero_terminated), 100);
ArrayT<char, 3> var_none_terminated = {{ '1', '0', '0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_none_terminated), "100");
BOOST_CHECK_EQUAL(lexical_cast<short>(var_none_terminated), static_cast<short>(100));
ArrayT<const char, 4> var_zero_terminated_const_char = {{ '1', '0', '0', '\0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_zero_terminated_const_char), "100");
ArrayT<const char, 3> var_none_terminated_const_char = {{ '1', '0', '0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_none_terminated_const_char), "100");
const ArrayT<char, 4> var_zero_terminated_const_var = {{ '1', '0', '0', '\0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_zero_terminated_const_var), "100");
const ArrayT<char, 3> var_none_terminated_const_var = {{ '1', '0', '0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_none_terminated_const_var), "100");
const ArrayT<const char, 4> var_zero_terminated_const_var_const_char = {{ '1', '0', '0', '\0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_zero_terminated_const_var_const_char), "100");
const ArrayT<const char, 3> var_none_terminated_const_var_const_char = {{ '1', '0', '0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_none_terminated_const_var_const_char), "100");
BOOST_CHECK_EQUAL(lexical_cast<int>(var_none_terminated_const_var_const_char), 100);
}
{
const ArrayT<const unsigned char, 4> var_zero_terminated_const_var_const_char = {{ '1', '0', '0', '\0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_zero_terminated_const_var_const_char), "100");
const ArrayT<const unsigned char, 3> var_none_terminated_const_var_const_char = {{ '1', '0', '0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_none_terminated_const_var_const_char), "100");
}
{
const ArrayT<const signed char, 4> var_zero_terminated_const_var_const_char = {{ '1', '0', '0', '\0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_zero_terminated_const_var_const_char), "100");
const ArrayT<const signed char, 3> var_none_terminated_const_var_const_char = {{ '1', '0', '0'}};
BOOST_CHECK_EQUAL(lexical_cast<std::string>(var_none_terminated_const_var_const_char), "100");
BOOST_CHECK_EQUAL(lexical_cast<unsigned int>(var_none_terminated_const_var_const_char), 100u);
}
#if !defined(BOOST_NO_STRINGSTREAM) && !defined(BOOST_NO_STD_WSTRING)
{
const ArrayT<const wchar_t, 4> var_zero_terminated_const_var_const_char = {{ L'1', L'0', L'0', L'\0'}};
BOOST_CHECK(lexical_cast<std::wstring>(var_zero_terminated_const_var_const_char) == L"100");
const ArrayT<const wchar_t, 3> var_none_terminated_const_var_const_char = {{ L'1', L'0', L'0'}};
BOOST_CHECK(lexical_cast<std::wstring>(var_none_terminated_const_var_const_char) == L"100");
BOOST_CHECK_EQUAL(lexical_cast<int>(var_none_terminated_const_var_const_char), 100);
}
#endif
#if !defined(BOOST_NO_CHAR16_T) && !defined(BOOST_NO_UNICODE_LITERALS)
{
const ArrayT<const char16_t, 4> var_zero_terminated_const_var_const_char = {{ u'1', u'0', u'0', u'\0'}};
BOOST_CHECK(lexical_cast<std::u16string>(var_zero_terminated_const_var_const_char) == u"100");
BOOST_CHECK_EQUAL(lexical_cast<unsigned short>(var_zero_terminated_const_var_const_char), static_cast<unsigned short>(100));
const ArrayT<const char16_t, 3> var_none_terminated_const_var_const_char = {{ u'1', u'0', u'0'}};
BOOST_CHECK(lexical_cast<std::u16string>(var_none_terminated_const_var_const_char) == u"100");
}
#endif
#if !defined(BOOST_NO_CHAR32_T) && !defined(BOOST_NO_UNICODE_LITERALS)
{
const ArrayT<const char32_t, 4> var_zero_terminated_const_var_const_char = {{ U'1', U'0', U'0', U'\0'}};
BOOST_CHECK(lexical_cast<std::u32string>(var_zero_terminated_const_var_const_char) == U"100");
const ArrayT<const char32_t, 3> var_none_terminated_const_var_const_char = {{ U'1', U'0', U'0'}};
BOOST_CHECK(lexical_cast<std::u32string>(var_none_terminated_const_var_const_char) == U"100");
BOOST_CHECK_EQUAL(lexical_cast<int>(var_none_terminated_const_var_const_char), 100);
}
#endif
}
void testing_boost_array_input_conversion()
{
testing_generic_array_input_conversion<boost::array>();
}
void testing_std_array_input_conversion()
{
#if !defined(BOOST_NO_CXX11_HDR_ARRAY) && defined(BOOST_HAS_TR1_ARRAY)
testing_generic_array_input_conversion<std::array>();
#endif
BOOST_CHECK(true);
}

539
test/lexical_cast_integral_types_test.cpp Normal file
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// Unit test for boost::lexical_cast.
//
// See http://www.boost.org for most recent version, including documentation.
//
// Copyright Terje Sletteb and Kevlin Henney, 2005.
// Copyright Alexander Nasonov, 2006.
// Copyright Antony Polukhin, 2011-2012.
//
// Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt).
//
// Note: The unit test no longer compile on MSVC 6, but lexical_cast itself works for it.
//
// We need this #define before any #includes: otherwise msvc will emit warnings
// deep within std::string, resulting from our (perfectly legal) use of basic_string
// with a custom traits class:
//
#define _SCL_SECURE_NO_WARNINGS
#include <boost/config.hpp>
#if defined(__INTEL_COMPILER)
#pragma warning(disable: 193 383 488 981 1418 1419)
#elif defined(BOOST_MSVC)
#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
#endif
#include <boost/lexical_cast.hpp>
#include <boost/cstdint.hpp>
#include <boost/test/unit_test.hpp>
#include <boost/test/floating_point_comparison.hpp>
#include <boost/type_traits/integral_promotion.hpp>
#include <string>
#include <vector>
#include <memory>
#if (defined(BOOST_HAS_LONG_LONG) || defined(BOOST_HAS_MS_INT64)) \
&& !(defined(BOOST_MSVC) && BOOST_MSVC < 1300)
#define LCAST_TEST_LONGLONG
#endif
#if defined(BOOST_NO_STRINGSTREAM) || defined(BOOST_NO_STD_WSTRING)
#define BOOST_LCAST_NO_WCHAR_T
#endif
// Test all 65536 values if true:
bool const lcast_test_small_integral_types_completely = false;
// lcast_integral_test_counter: use when testing all values of an integral
// types is not possible. Max. portable value is 32767.
int const lcast_integral_test_counter=500;
using namespace boost;
void test_conversion_from_to_short();
void test_conversion_from_to_ushort();
void test_conversion_from_to_int();
void test_conversion_from_to_uint();
void test_conversion_from_to_long();
void test_conversion_from_to_ulong();
void test_conversion_from_to_intmax_t();
void test_conversion_from_to_uintmax_t();
#ifdef LCAST_TEST_LONGLONG
void test_conversion_from_to_longlong();
void test_conversion_from_to_ulonglong();
#endif
unit_test::test_suite *init_unit_test_suite(int, char *[])
{
unit_test::test_suite *suite =
BOOST_TEST_SUITE("lexical_cast unit test on integral types");
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_short));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_ushort));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_int));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_uint));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_long));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_ulong));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_intmax_t));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_uintmax_t));
#ifdef LCAST_TEST_LONGLONG
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_longlong));
suite->add(BOOST_TEST_CASE(&test_conversion_from_to_ulonglong));
#endif
return suite;
}
template<class T, class CharT>
void test_conversion_from_integral_to_char(CharT zero)
{
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(0)) == zero + 0);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(1)) == zero + 1);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(2)) == zero + 2);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(3)) == zero + 3);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(4)) == zero + 4);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(5)) == zero + 5);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(6)) == zero + 6);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(7)) == zero + 7);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(8)) == zero + 8);
BOOST_CHECK(lexical_cast<CharT>(static_cast<T>(9)) == zero + 9);
BOOST_CHECK_THROW(lexical_cast<CharT>(static_cast<T>(10)), bad_lexical_cast);
T t = (std::numeric_limits<T>::max)();
BOOST_CHECK_THROW(lexical_cast<CharT>(t), bad_lexical_cast);
}
template<class T, class CharT>
void test_conversion_from_char_to_integral(CharT zero)
{
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 0)) == static_cast<T>(0) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 1)) == static_cast<T>(1) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 2)) == static_cast<T>(2) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 3)) == static_cast<T>(3) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 4)) == static_cast<T>(4) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 5)) == static_cast<T>(5) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 6)) == static_cast<T>(6) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 7)) == static_cast<T>(7) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 8)) == static_cast<T>(8) );
BOOST_CHECK(lexical_cast<T>( static_cast<CharT>(zero + 9)) == static_cast<T>(9) );
BOOST_CHECK_THROW(lexical_cast<T>( static_cast<CharT>(zero + 10)), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>( static_cast<CharT>(zero - 1)), bad_lexical_cast);
}
template<class T>
void test_conversion_from_integral_to_integral()
{
T t = 0;
BOOST_CHECK(lexical_cast<T>(t) == t);
// Next two variables are used to supress warnings.
int st = 32767; unsigned int ut = st;
t = st;
BOOST_CHECK(lexical_cast<short>(t) == st);
BOOST_CHECK(lexical_cast<unsigned short>(t) == ut);
BOOST_CHECK(lexical_cast<int>(t) == st);
BOOST_CHECK(lexical_cast<unsigned int>(t) == ut);
BOOST_CHECK(lexical_cast<long>(t) == st);
BOOST_CHECK(lexical_cast<unsigned long>(t) == ut);
t = (std::numeric_limits<T>::max)();
BOOST_CHECK(lexical_cast<T>(t) == t);
t = (std::numeric_limits<T>::min)();
BOOST_CHECK(lexical_cast<T>(t) == t);
}
// Replace "-,999" with "-999".
template<class CharT>
std::basic_string<CharT> to_str_gcc_workaround(std::basic_string<CharT> str)
{
std::locale loc;
std::numpunct<CharT> const& np = BOOST_USE_FACET(std::numpunct<CharT>, loc);
std::ctype<CharT> const& ct = BOOST_USE_FACET(std::ctype<CharT>, loc);
if(np.grouping().empty())
return str;
CharT prefix[3] = { ct.widen('-'), np.thousands_sep(), CharT() };
if(str.find(prefix) != 0)
return str;
prefix[1] = CharT();
str.replace(0, 2, prefix);
return str;
}
template<class CharT, class T>
std::basic_string<CharT> to_str(T t)
{
std::basic_ostringstream<CharT> o;
o << t;
return to_str_gcc_workaround(o.str());
}
template<class T, class CharT>
void test_conversion_from_integral_to_string(CharT)
{
typedef std::numeric_limits<T> limits;
typedef std::basic_string<CharT> string_type;
T t;
t = (limits::min)();
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
t = (limits::max)();
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
if(limits::digits <= 16 && lcast_test_small_integral_types_completely)
// min and max have already been tested.
for(t = 1 + (limits::min)(); t != (limits::max)(); ++t)
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
else
{
T const min_val = (limits::min)();
T const max_val = (limits::max)();
T const half_max_val = max_val / 2;
T const cnt = lcast_integral_test_counter; // to supress warnings
unsigned int const counter = cnt < half_max_val ? cnt : half_max_val;
unsigned int i;
// Test values around min:
t = min_val;
for(i = 0; i < counter; ++i, ++t)
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
// Test values around max:
t = max_val;
for(i = 0; i < counter; ++i, --t)
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
// Test values around zero:
if(limits::is_signed)
for(t = static_cast<T>(-counter); t < static_cast<T>(counter); ++t)
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
// Test values around 100, 1000, 10000, ...
T ten_power = 100;
for(int e = 2; e <= limits::digits10; ++e, ten_power *= 10)
{
// ten_power + 100 probably never overflows
for(t = ten_power - 100; t != ten_power + 100; ++t)
BOOST_CHECK(lexical_cast<string_type>(t) == to_str<CharT>(t));
}
}
}
template<class T, class CharT>
void test_conversion_from_string_to_integral(CharT)
{
typedef std::numeric_limits<T> limits;
typedef std::basic_string<CharT> string_type;
string_type s;
string_type const zero = to_str<CharT>(0);
string_type const nine = to_str<CharT>(9);
T const min_val = (limits::min)();
T const max_val = (limits::max)();
s = to_str<CharT>(min_val);
BOOST_CHECK_EQUAL(lexical_cast<T>(s), min_val);
if(limits::is_signed)
{
BOOST_CHECK_THROW(lexical_cast<T>(s + zero), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(s + nine), bad_lexical_cast);
}
s = to_str<CharT>(max_val);
BOOST_CHECK_EQUAL(lexical_cast<T>(s), max_val);
{
BOOST_CHECK_THROW(lexical_cast<T>(s + zero), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(s + nine), bad_lexical_cast);
s = to_str<CharT>(max_val);
for (int i =1; i <=10; ++i) {
s[s.size()-1] += 1;
BOOST_CHECK_THROW(lexical_cast<T>( s ), bad_lexical_cast);
}
s = to_str<CharT>(max_val);
std::locale loc;
typedef std::numpunct<char> numpunct;
if ( BOOST_USE_FACET(numpunct, loc).grouping().empty() ) {
// Following tests work well for locale C
BOOST_CHECK_EQUAL(lexical_cast<T>(to_str<CharT>(0)+s), max_val);
BOOST_CHECK_EQUAL(lexical_cast<T>(to_str<CharT>(0)+to_str<CharT>(0)+s), max_val);
BOOST_CHECK_EQUAL(lexical_cast<T>(to_str<CharT>(0)+to_str<CharT>(0)+to_str<CharT>(0)+s), max_val);
}
for (int i =1; i <=256; ++i) {
BOOST_CHECK_THROW(lexical_cast<T>( to_str<CharT>(i)+s ), bad_lexical_cast);
}
typedef BOOST_DEDUCED_TYPENAME boost::integral_promotion<T>::type promoted;
if ( !(boost::is_same<T, promoted>::value) )
{
promoted prom = max_val;
s = to_str<CharT>(max_val);
for (int i =1; i <=256; ++i) {
BOOST_CHECK_THROW(lexical_cast<T>( to_str<CharT>(prom+i) ), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>( to_str<CharT>(i)+s ), bad_lexical_cast);
}
}
}
if(limits::digits <= 16 && lcast_test_small_integral_types_completely)
// min and max have already been tested.
for(T t = 1 + min_val; t != max_val; ++t)
BOOST_CHECK(lexical_cast<T>(to_str<CharT>(t)) == t);
else
{
T const half_max_val = max_val / 2;
T const cnt = lcast_integral_test_counter; // to supress warnings
unsigned int const counter = cnt < half_max_val ? cnt : half_max_val;
T t;
unsigned int i;
// Test values around min:
t = min_val;
for(i = 0; i < counter; ++i, ++t)
BOOST_CHECK(lexical_cast<T>(to_str<CharT>(t)) == t);
// Test values around max:
t = max_val;
for(i = 0; i < counter; ++i, --t)
BOOST_CHECK(lexical_cast<T>(to_str<CharT>(t)) == t);
// Test values around zero:
if(limits::is_signed)
for(t = static_cast<T>(-counter); t < static_cast<T>(counter); ++t)
BOOST_CHECK(lexical_cast<T>(to_str<CharT>(t)) == t);
// Test values around 100, 1000, 10000, ...
T ten_power = 100;
for(int e = 2; e <= limits::digits10; ++e, ten_power *= 10)
{
// ten_power + 100 probably never overflows
for(t = ten_power - 100; t != ten_power + 100; ++t)
BOOST_CHECK(lexical_cast<T>(to_str<CharT>(t)) == t);
}
}
}
template<class T>
void test_conversion_from_to_integral_for_locale()
{
std::locale current_locale;
typedef std::numpunct<char> numpunct;
numpunct const& np = BOOST_USE_FACET(numpunct, current_locale);
if ( !np.grouping().empty() )
{
BOOST_CHECK_THROW(
lexical_cast<T>( std::string("100") + np.thousands_sep() + np.thousands_sep() + "0" )
, bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>( std::string("100") + np.thousands_sep() ), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>( np.thousands_sep() + std::string("100") ), bad_lexical_cast);
// Exception must not be thrown, when we are using no separators at all
BOOST_CHECK( lexical_cast<T>("30000") == static_cast<T>(30000) );
}
test_conversion_from_integral_to_integral<T>();
test_conversion_from_integral_to_string<T>('0');
test_conversion_from_string_to_integral<T>('0');
#if !defined(BOOST_LCAST_NO_WCHAR_T)
test_conversion_from_integral_to_string<T>(L'0');
test_conversion_from_string_to_integral<T>(L'0');
#endif
}
struct restore_oldloc
{
std::locale oldloc;
~restore_oldloc() { std::locale::global(oldloc); }
};
template<class T>
void test_conversion_from_to_integral()
{
char const zero = '0';
signed char const szero = '0';
unsigned char const uzero = '0';
test_conversion_from_integral_to_char<T>(zero);
test_conversion_from_char_to_integral<T>(zero);
test_conversion_from_integral_to_char<T>(szero);
test_conversion_from_char_to_integral<T>(szero);
test_conversion_from_integral_to_char<T>(uzero);
test_conversion_from_char_to_integral<T>(uzero);
#if !defined(BOOST_LCAST_NO_WCHAR_T) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
wchar_t const wzero = L'0';
test_conversion_from_integral_to_char<T>(wzero);
test_conversion_from_char_to_integral<T>(wzero);
#endif
#if !defined(BOOST_NO_CHAR16_T) && !defined(BOOST_NO_UNICODE_LITERALS)
char16_t const u16zero = u'0';
test_conversion_from_integral_to_char<T>(u16zero);
test_conversion_from_char_to_integral<T>(u16zero);
#endif
#if !defined(BOOST_NO_CHAR32_T) && !defined(BOOST_NO_UNICODE_LITERALS)
char32_t const u32zero = u'0';
test_conversion_from_integral_to_char<T>(u32zero);
test_conversion_from_char_to_integral<T>(u32zero);
#endif
BOOST_CHECK(lexical_cast<T>("-1") == static_cast<T>(-1));
BOOST_CHECK(lexical_cast<T>("-9") == static_cast<T>(-9));
BOOST_CHECK(lexical_cast<T>(-1) == static_cast<T>(-1));
BOOST_CHECK(lexical_cast<T>(-9) == static_cast<T>(-9));
BOOST_CHECK_THROW(lexical_cast<T>("-1.0"), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>("-9.0"), bad_lexical_cast);
BOOST_CHECK(lexical_cast<T>(-1.0) == static_cast<T>(-1));
BOOST_CHECK(lexical_cast<T>(-9.0) == static_cast<T>(-9));
BOOST_CHECK(lexical_cast<T>(static_cast<T>(1)) == static_cast<T>(1));
BOOST_CHECK(lexical_cast<T>(static_cast<T>(9)) == static_cast<T>(9));
BOOST_CHECK_THROW(lexical_cast<T>(1.1f), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(1.1), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(1.1L), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(1.0001f), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(1.0001), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(1.0001L), bad_lexical_cast);
BOOST_CHECK(lexical_cast<T>("+1") == static_cast<T>(1) );
BOOST_CHECK(lexical_cast<T>("+9") == static_cast<T>(9) );
BOOST_CHECK(lexical_cast<T>("+10") == static_cast<T>(10) );
BOOST_CHECK(lexical_cast<T>("+90") == static_cast<T>(90) );
BOOST_CHECK_THROW(lexical_cast<T>("++1"), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>("-+9"), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>("--1"), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>("+-9"), bad_lexical_cast);
// test_conversion_from_to_integral_for_locale
// Overflow test case from David W. Birdsall
std::string must_owerflow_str = "160000000000000000000";
std::string must_owerflow_negative_str = "-160000000000000000000";
for (int i = 0; i < 15; ++i) {
BOOST_CHECK_THROW(lexical_cast<T>(must_owerflow_str), bad_lexical_cast);
BOOST_CHECK_THROW(lexical_cast<T>(must_owerflow_negative_str), bad_lexical_cast);
must_owerflow_str += '0';
must_owerflow_negative_str += '0';
}
typedef std::numpunct<char> numpunct;
restore_oldloc guard;
std::locale const& oldloc = guard.oldloc;
std::string grouping1 = BOOST_USE_FACET(numpunct, oldloc).grouping();
std::string grouping2(grouping1);
test_conversion_from_to_integral_for_locale<T>();
try
{
std::locale newloc("");
std::locale::global(newloc);
grouping2 = BOOST_USE_FACET(numpunct, newloc).grouping();
}
catch(std::exception const& ex)
{
std::string msg("Failed to set system locale: ");
msg += ex.what();
BOOST_TEST_MESSAGE(msg);
}
if(grouping1 != grouping2)
test_conversion_from_to_integral_for_locale<T>();
if(grouping1.empty() && grouping2.empty())
BOOST_TEST_MESSAGE("Formatting with thousands_sep has not been tested");
}
void test_conversion_from_to_short()
{
test_conversion_from_to_integral<short>();
}
void test_conversion_from_to_ushort()
{
test_conversion_from_to_integral<unsigned short>();
}
void test_conversion_from_to_int()
{
test_conversion_from_to_integral<int>();
}
void test_conversion_from_to_uint()
{
test_conversion_from_to_integral<unsigned int>();
}
void test_conversion_from_to_long()
{
test_conversion_from_to_integral<long>();
}
void test_conversion_from_to_ulong()
{
test_conversion_from_to_integral<unsigned long>();
}
void test_conversion_from_to_intmax_t()
{
test_conversion_from_to_integral<boost::intmax_t>();
}
void test_conversion_from_to_uintmax_t()
{
test_conversion_from_to_integral<boost::uintmax_t>();
}
#if defined(BOOST_HAS_LONG_LONG)
void test_conversion_from_to_longlong()
{
test_conversion_from_to_integral<boost::long_long_type>();
}
void test_conversion_from_to_ulonglong()
{
test_conversion_from_to_integral<boost::ulong_long_type>();
}
#elif defined(BOOST_HAS_MS_INT64)
void test_conversion_from_to_longlong()
{
test_conversion_from_to_integral<__int64>();
}
void test_conversion_from_to_ulonglong()
{
test_conversion_from_to_integral<unsigned __int64>();
}
#endif